When your half way through a boner and your penis moves up and down periodically.
Dude he’s got a breathing penis!
by Hasj January 11, 2018
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one whose breath has a scent which would indicate their mouth and a penis have been spending a lot of time together. this need not be applied literally and be used simply to deride someone or make them feel bad about themselves.
1. person 1: i like chloe, shes nice.
person 2: no shes not, shes a dumb bitch.
person 1: nu-uh!
person 2: look penis breath, just because you were so busy giving your dog a rim job that you didnt notice that i'm smarter than you doesn't mean that im not smarter than you. she's a dumb bitch.

2. person 1: you have terrible taste in music.
person 2: no i dont, metallica fucking rocks.
person 1: exactly, penis breath.
by weezer August 2, 2004
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What Elliott calls Michael in E.T
Michael: Maybe an elf or a leprechaun
Elliott: IT WAS NOTHING LIKE THAT PENIS BREATH!
by Anonymous person..... July 13, 2016
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A state of oral being in which the aroma of the mouth is equal to that of a penis. Usually accompanied by excessive oral insertion of the penis.
After going down on her boyfriend for 3 hours without pause, julie has a bad case of penis breath.
by John X April 25, 2003
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Someone who's breath smells like a penis has been there from giving a bunch of blowjobs.
My dog sucks his own weenie. He has penis breath.
by Mona Lott November 29, 2005
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A condition that develops during the act of oral sex, usually lasting under an hour depending on amount of ejaculate one has had in their mouth. This is a normal condition and should not require medical attention unless chronic penis breath develops. Usually clears up with two Altoids, or in serious cases, brush your teeth, floss, use mouthwash, and then forget it.

See also: Breath Cancer.
I have penis breath even though I didn't swallow. He had the worst tasting cum ever.
by metalslut July 5, 2019
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A: (noun) A girl who frequently gives guys blow jobs. This is the literal meaning for penis-breath.

B: (adj) To have smelly breath so that people sitting around you back away from you

C: (noun) An out-of-the-blue insult, for example calling someone a bitch or a dickhead.
A: *sexual tone*
"Hey, how would you like to come to my place tonight?"
"Errr..."
"Don't worry. I don't have penis-breath."

B: *whispering*
"His breath stinks! Let's just go now."
"Well there really is no point in sitting next to that penis-breath."

C: "Why didn't you come and meet me after school you penis-breath?"
"Oh sorry my bitchy English teacher gave me a detention."
by Kamikaze Watermelon January 16, 2009
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