To make a joke. ie "pulling your leg"
Mikey: hey mom. Your looking beautiful today as usual.
Mom: well thank you mikey, and for that you get to stay up past 9:00 tonight.
Mikey: 9:00 that's it? Do you know how to raise kids bitch?
Mom: mikey!! You watch your mouth young man!! For that I'll send your ass to bed extra early!! NOW UPSTAIRS AND IN BED!!
Mikey: calm down mom, I was just "pulling your cunt hairs". Learn how to take a joke for shits sake.
Mom: oh hahaha!! You get your sense of humor from me.