1) A
small piece of
fabric on pants used to keep the a belt in place so it doesn't slip downwards and
loosen the waist
2) A sex act where the male(s) inserts his penis into any orifice on another person's body, essentially creating his own holes
Example 1
"My buddy and I gave that chick so many
belt loops last night.
That slut got
wrecked"
Example 2
Jimmy had to fix the worn and broken belt loops on his jeans so could use his belt while wearing them.