the act of fingering a girl while recieving head in the back seat of a car. a Win/win situation for both participants. Developed in the town of Suamico.
"Dude i heard you gave hannah a wicked Suamico Two Timer last night."
Refers to catholics who attend churchtwice a year, on Christmas and Easter. May also be used to refer to other religions, but is most commonly used in reference to catholics.
The Christmasmass is always packed. All the two-timer catholics come back and take up the good seats.