garter snapper
An outdated term used popularly in the 1920s-1950s that refers to a man who has sex with many different women or has a lot of one night stands. The phrase "garter snapper" originates in this time period due to the fact that women often wore garters to hold up their tights and therefore someone who often "snaps" these garters takes them off, an act commonly preformed during this time period during sex or an affair.
"Did you hear that Connorly went to bed with both Meg and Sally in the same week!"
"Woah, he's quite the garter snapper."
"Woah, he's quite the garter snapper."