to kiss for a long period of time, may include (hopefully) some biting and licking of the neck and ears. non-pretty way of saying make out.
Nineteen-year-old Louisa Almedovar and her 22-year-old boyfriend Rich Langley, both of Vineland, New Jersey, USA, sucked face non-stop for a record 30 hours, 59 minutes and 27 seconds on December 5, 2001
hardcore making out. Lots of tongue action
He likes to suck face with his lady friends
It means to make-out voraciously. Term is used more when people see you doing it publicly. Not necessarily a bad thing but people say it more disparagingly.
Jesus, get a room - no one wants to see you suck face right before I order my food, ugh!
I had to look at the clock, I had no idea what time it was because we were sucking face for so long.
to make out with someone hardcore...
i'm trying to listen to my music but i can't because them to are sucking face in my backseat
To kiss so hard/intensely that one or both partner(s) are literally sucking each others faces
Man those people sucking face over there are grossin' me out!
to make out intensely
I gave my husband some suck face when I got home from work.