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Related to bald: bold
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(as) bald as a baby's backside

slang Totally bald. My father had long hair as a teen, but now he's bald as a baby's backside.
See also: backside, bald

(as) bald as a billiard ball

Totally bald. Balls used in billiards are shiny and smooth. My father had long hair as a teen, but now he's bald as a billiard ball.
See also: bald, ball, billiard

bald as a coot

Totally bald. My father had long hair as a teen, but now he's bald as a coot.
See also: bald, coot

bald-faced liar

One who tells blatantly obvious or impudent untruths easily and with little or no attempt to disguise the lie. Everyone knows he is just a bald-faced liar. It's a wonder anyone believes a thing he says anymore.
See also: liar

bald-faced lie

A blatantly obvious or impudent untruth, one in which the liar does not attempt to disguise their mendacity. Our son tells us nothing but bald-faced lies when we ask him where he goes at night.
See also: lie

bald-headed hermit

vulgar slang A penis. Hey, I don't want to see your bald-headed hermit—pull up your pants!

bald-headed mouse

vulgar slang A penis. Hey, I don't want to see your bald-headed mouse—pull up your pants!
See also: mouse

be as bald as a coot

To be totally bald. My father had long hair as a teen, but now he's as bald as a coot.
See also: bald, coot
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

*bald as a coot

 and *bald as a baby's backside
completely bald. (*Also: as ~.) If Tom's hair keeps receding like that, he'll be bald as a coot by the time he's thirty. Fred: Now, I'll admit my hair is thinning a little on the top, butJane: Thinning? You're not thinning, you're as bald as a baby's backside!
See also: bald, coot
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

as bald as a coot

completely bald.
The coot (Fulica atra) has a broad white shield extending up from the base of its bill. The history of the word bald is somewhat obscure, but analogies with other northern European languages suggest a connection with the idea of ‘having a white patch or streak’.
See also: bald, coot
Farlex Partner Idioms Dictionary © Farlex 2017

(as) bald as a ˈcoot

having no hair on your head at all: Why did you buy him a hairbrush? He’s as bald as a coot!
A coot is a black bird with a white patch on its forehead that lives on or near water.
See also: bald, coot
Farlex Partner Idioms Dictionary © Farlex 2017

bald-headed hermit

and bald-headed mouse and one-eyed pants mouse
n. the penis. (Usually objectionable.) Somebody said something about the attack of the one-eyed pants mouse, and all the boys howled with laughter. Although “bald-headed hermit” gave her mental images of Ghandi on vacation, she soon figured out the riddle.

bald-headed mouse

See also: mouse
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

bald as a coot/billiard ball

Very bald indeed. The coot is a black waterbird whose white bill extends up to the forehead, making it appear to be bald. Indeed, this bird was already being called a balled cote in the thirteenth century. The later simile, to a billiard ball, has been less recorded, but since billiards was already popular in Shakespeare’s day it cannot be of very recent origin.
See also: bald, ball, billiard, coot
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in periodicals archive ?
Table 3 indicates that in expressing response to friend with same gender, the respondents preferred high use of bald on record politeness strategy (N = 96, 49.7 %) with low use of negative politeness and moderately used other two strategies.
Bald Head Blues is known for their coastal and island style but their collections also incorporate technology like "Comfort Flex" which combines pima cotton with the performance and stretch of spandex.
Retailers that understand that innovation is the key to category growth are the ones being rewarded with increased sales, Fisher says, noting that Bee Bald's sales and distribution have grown by triple digits every year since the company has been in business.
A Bald Eagle was presumed to be nesting if it used the same location (presumed nest) every day for at least 35 d, as determined by GPS locations.
Honey and pollen extract are common components of each Bee Bald product, and some also feature ingredients such as licorice root, fruit extract and vitamins.
One of the seven northern bald ibis chicks at Chester Zoo
Bald eagles suffered a higher rate of decline than the golden eagle because fish, which is their primary source of food, built up high levels of DDT in their systems.
There are an estimated 14,500 bald eagle pairs in the contiguous U.S.
Southeast Alaska is home to the largest population of Bald Eagles in the United States (Hodges 2011), where abundant marine resources are important for breeding success and survival (Anthony 2001; Elliott and others 2011).
As part of a project launched in 1977 by the Ministry of Forestry and Water Affairs, the bald ibises were taken care specially.
Faces Like Devils: The Bald Knobber Vigilantes in the Ozarks
But Hibs also threatened with Scott Robertson pulling a shot inches wide after a good build-up, while Billy Bald had to save at the second attempt from a Dylan McGeouch shot.
The most majestic example of Mississippi wildlife and a temporary resident is the bald eagle, Haliaeetus leucocephalus.
A conservation plan to manage New York's population of the bald eagle is now available for public review and comment