The tip of a black person's penis.
Nig 1:Ay, Athena look!
Girl 1:Ewwwww!
Nig 1:Da Tip
when you finish a dum dum sucker by biting the sucker leaving a little bit of the sucker on the stick and then your bro hands you another sucker but spits on it
"man i was a shit stick up a tree but then my bro was like"
'here i have a bit dip in da nip tip"
aka
a shit stick up a tree is like a bit dip in da nip tip