Definitions by mr jolly
roscoe
the act of mildly slapping a sexual partner on each cheek with your old chap, leaving a little red mark - a calling card if you will.
dogbowl
a particularly rigourous blow job, so named as it resembles a hungry labrador scoffing the final remains of the pedigree chum.
"she was insatiable, she dogbowled the hell out of me"