Fill the Hole
Sex with a girl (used by football jocks) most likely because its a defensive players job is to fill the hole that the RB runs through.
Example:
jock1: You chillin with Amelia
jock2: Yea dude im gunna fill the hole !!
jock1: Your a Linebacker all you do is fill holes
jock1: You chillin with Amelia
jock2: Yea dude im gunna fill the hole !!
jock1: Your a Linebacker all you do is fill holes