Mousing

Any mischief or shenanigans by a person or group of people (usually teens/college kids.) Synonymous with booling.

Bro where did Tyler go?
I heard he’s mousing with Janessa behind the shed. 😳

Yo last night I went mousing with the boys.

No way what did u guys do?
We found a group of rockets and then took out some mailboxes.