What is Cat-nip?
1.
When a female takes a verbal stab at her female friend or makes a back-handed compliment to her female friend as a result of rivalry or jealousy at somehow being bested by that friend.
Female 1: Wow I can't believe I came in at first place at that track meet.
Female 2: I came in at tenth place. Well at least now we know your long gangly legs are good for something.
Female 3: Oooo! Cat-nip!
See