Definitions by Dick Caswell USCG Academy

filleting tuna 

When a male engages in sexual intercourse with a female

Jack just took Mary home and is currently filleting tuna in his bedroom

filleting tuna by Dick Caswell USCG Academy March 21, 2011

Flogging the Bishop 

A synonym for masturbation

Well now that your girlfiend broke up with you I'm sure you'll be flogging the bishop a lot more.

Flogging the Bishop by Dick Caswell USCG Academy March 21, 2011