titty bumpin
when your making out with a chick and then you put your face in there bare and or covered tits.
michael is making out with kt. then he titty bumps (verb. titty bumping) her and she smiles.
bumpin' titties
To argue with someone... to get up in their face, so much so that you're in a close enough proximity to them to where your chests are touching or are nearly touching.
Paloma and Maria were bumpin' titties over that fine gato named Rico.