purr like a cat
1. Of an engine, motor, or other piece of machinery, to run very smoothly and efficiently (often signified by a smooth, rich humming noise, not unlike that of a cat's purr). Once get this carburetor repaired, this old car is going to purr like a cat again. I just replaced the motherboard on my PC and installed a bunch of new RAM—now it's purring like a cat.
2. Of person, to sigh, hum, or moan with contentment or pleasure. The kids purred like cats as they ate their ice cream cones. I know a few tricks that will have your partner purring like a cat.
purr like a kitten
1. Of an engine, motor, or other piece of machinery, to run very smoothly and efficiently (often signified by a smooth, rich humming noise, not unlike that of a cat's purr). Once get this carburetor repaired, this old car is going to purr like a kitten again. I just replaced the motherboard on my PC and installed a bunch of new RAM—now it's purring like a kitten.
2. Of person, to sigh, hum, or moan with contentment or pleasure. The kids purred like kittens as they ate their ice cream cones. I know a few tricks that will have your partner purring like a kitten.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.
purr like a cat
and purr like a kitten 1. Fig. [for an engine] to run well and smoothly. My car really purred after I got it tuned up. New sparkplugs and this old heap will really purr like a cat.
2. Fig. [for a person] to be very pleased, and perhaps moan or purr with pleasure. She was so pleased that she purred like a cat. Sarah really purrs like a kitten when she is happy.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.