Any cylindrical object, usually made of material, that looks as though a penis could fit snuggly inside.
What the hell is that, your willy warmer?
by The Asshatter December 18, 2006
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CB radio slang for an illegal amplifier (usally a modified 10/12 meter ham radio amp.) which brings the 4W AM (12W SSB). output to something like 1000 watts or sometimes higher. As a result, the 26.965 to 27.405 MHz band is littered with stations jamming a single channel and not allowing anyone else to use it (AM does not have the "capture effect" that FM does.) because that person is using a "foot warmer" and it congests the frequency so much that it is unusable, and in turn, more people buy "foot warmers" to combat this interferance from distant stations, and thus the cycle continues.

If everyone who used illegal amplifiers was to stop using thier illegal equipment, range and interferance problems would lessen even for those who abandoned thier illegal equipment.
Dude! Hide your foot warmer, here comes uncle charlie!

Roger that, CRYSTAL PALACE BASE CONTROL has a foot warmer.
by IrishRepublicanArmy December 8, 2003
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When a girl wraps her legs around a man's face and she hasn't shaved for a couple of weeks that's what's known as a 'face warmer'
Come on love, Its freezing, how about a wee face warmer.
by San Khandr December 23, 2009
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A extremely attractive girl designated to sit on your private parts to keep them warm.
Man That girl is so sexy, I would just have her sit on me all day long, were every I went.. To keep my cock warm!
She'd be my cock warmer!
by James Meade & Richard Davies November 10, 2008
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Generously proportioned knickers. Underwear that also keep the belly warm. 'Apple Catchers'
After dinner she gave me the green light for some rumpy pumpy however the passion was killed when I discovered she was wearing belly warmers so big she could tuck her boobs in them.
by gmc August 8, 2006
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A girl that’s only good for taking a load of cum. Sometimes keeping it warm for the next guy as lube.
Had a threesome with that slut and her boyfriend. She’s just a cum warmer for the second act.
by Masternuke04 August 10, 2020
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Someone who spends most of their time looking at their reflection.
Bob:Would you stop being a mirror warmer for a second?!
Jennifer:Hold on!A few more moments!
by JungReal October 18, 2015
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