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Related to knob: Knob and tube wiring
vulgar derogatory A person, typically a man, with naturally red hair. Primarily heard in UK, Ireland.
dated A rounded knob mounted to the steering wheel of an automobile so that it may be steered with one hand. So called because the driver (typically male) is able to place his arm around his girlfriend or wife. My grandfather gave me his old Cadillac, which still had the necker's knob on the wheel from when he first started courting my grandmother.
See also: knob
with (brass) knobs on
In a much more extreme form. I've been to both, and I can tell you that Carnival is like Mardi Gras with knobs on. Your report is like my report with brass knobs on—it's 30 pages longer!
dated A rounded knob mounted to the steering wheel of a car so that it can be steered with one hand. So called because the driver (typically male) is able to place their arm around their romantic partner. My grandfather gave me his old Cadillac, which still had the necking knob on the wheel from when he first started courting my grandmother.
get (one's) knob polished
vulgar slang To have sexual intercourse. Typically said of a male (with "knob" being a vulgar slang term for a penis). If Brett didn't come home last night, I bet it's because he got his knob polished.
with knobs (or brass knobs) onand something more. British informal
1998 Pi Magazine But all this would count for zilch if the music didn't stand the test of time. But it does, with knobs on.
with ˈknobs on(British English, slang) used to say that something is a more complicated version of what you mention: It isn’t art — it’s just a horror movie with knobs on!
get one’s knob polished
tv. to copulate or otherwise have sex. (Refers to a male. Usually objectionable.) Man, if you want to get your knob polished, just let me know. I got girls! I got girls you wouldn’t believe!
A swivel on a car's steering wheel. The necking knob enables the driver to steer with his left hand while encircling his girlfriend's shoulder with his right arm. Even when the driver was alone, the knob was an easy way to turn the car in the days before power steering.