hand in the cookie jar
When you are in the act of coitus and a guy or girl (because it could go both way) sticks their hand into the girls' vagina for the pleasure of the girl. Similar to fingering
1. Sebastian "Dudeee, last night I was with this fox and I stuck my hand in the cookie jar" ;)
2. Bianca "Hey girlyyyy, last night I was with this HOTTT guy and he stuck his hand in the cookie jar!"
2. Bianca "Hey girlyyyy, last night I was with this HOTTT guy and he stuck his hand in the cookie jar!"
caught with his hand in the cookie jar
Seen by somebody while trying to take a thing that he/she was not entitled to.
"Uncle Joe got caught with his hand in the cookie jar while trying to grab a toy intended for the kids".