The act of hitting two homeruns in a single game of baseball
how was your game today...It was sick, we beat them 15-0 I had a Mercier
by Ozcorp July 14, 2006
also known as a "feeder" who enjoys feeding people while having sex. They love making love to fat bastards and enjoy licking food off their partners genitals.
"oh yea I totally had sex with a mercier last night. I didn't even have to have dinner after!"
by doublebubble October 19, 2009
Mooks Bitch...a kid from New Bedford that Southie Thugs hate...haha
Justin Mercier said he was Mook's bitch in a fight with him.
by FeLtCh January 31, 2004