Screech the Weasel 

1) v. to masturbate, particularly used when referring to male masturbation.

2) v. to stimulate another's penis manually.

1) Did John come to school today?
-Nope, he decided to stay home
and screech the weasel to some
Czech transsexual porn.

2) She hit me in the face, so I
made her screech my weasel for
forgiveness.

Nota Bene : When used in the past tense, screech is not conjugated as "screeched," rather as "scroche," (pronounced "skROACH."
I heard Bob went over to Susan's.
Did they fool around?
-Nope, they just sat in separate
rooms all night and silently
scroche their respective weasels.
Ha, Bob gets no play.

Screech the Weasel by DasProfezzional May 4, 2005