Dutch Uncle Rub
A way to simulate sex without penetration. The lady lubes her inner thighs and the guy goes to town without penetrating.
Jill said she's staying a virgin until marriage, but I got one hell of a dutch uncle rub off her last night!
Uncle rub
The act of touching a females genitalia over her pants or dress
That creepy guy at the party totally uncle rubbed me while we were dancing