Giraffing is when the male partner has an incredibly long cock, and the female partner has an abnormally large neck capable of deepthroating the full cock
Male 1: aye man did you get any last night?
Male 2: yea she was giraffing my cock for a while.
Male 1: that's radical man!
It's like this really sexual filthy, filthy thing where you and however many partners try to eat fruit out of trees. Right out of 'em. And there's, I don't know where the insertion happens maybe like, after you eat all the fruit out of the trees you lay down on each other? Back and forth on each other and you enjoy the fruity taste that you got in your mouth.
There's a risk if a second potential partner enters there area, you have to slap your necks together to establish dominance.
When one is so intoxicated that their walking ressembles that of a newborn baby giraffe; typically witnessed when college sorority girls in unusually high heels try to leave (i.e. stumble from) the bar after a night of frinks