Green’s Dictionary of Slang

1. to have sexual intercourse.

1986		Eble Campus Sl. Mar. 2: bonk [...] scrog.
1987		Eble Campus Sl. Fall 7: scrog action – passionate display of affection.
1989		Eble Campus Sl. Mar. 7: scrog – display affection publicly.
1994		Eble Campus Sl. Apr. 7: scrogg – have sex.
1999		Eble Campus Sl. Apr.
2016		C. Eble (ed.) UNC-CH Campus Sl. Spring 2016 SCROG — have sex. SCROGGIN’ TOBOGGAN — condom.

2. to display affection in public.

1987		Eble Campus Sl. Fall 7: scrog action – passionate display of affection.
1989		Eble Campus Sl. Mar. 7: scrog – display affection publicly.