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1.
A title commonly used to describe one's heterosexual friend.. It is referring to the fact that if you performed oral sex on a male, the result would be that your breath would emanate the smell of that man's genitalia, thus giving you the breath of a "faggot", or homosexual.

Note: This is usually reserved to be directed towards men, as modifying the adjective to a more aquatic-animal based term would better suit a female.
i.e.) Fish Breath, or see Tuna breath
Person 1: (Walks into a room.)
Person 2: Hey! What's up, faggot breath?!
by aidanshakes January 05, 2011
 
2.
When a homosexual licks another homosexual's penis and balls.
Mark licked his boyfriends Penis and Balls to make his breath smell like a faggot, so a faggot breath.
by SALLY ATKINSON August 27, 2006