1 definition by Coach Sam Copeland
When a heavily intoxicated girl or just plain-out whore decides to grind on 5 or more guys in a linear pattern, usually occuring at club, house party, or concert
Clemson, SC
Guy 1: "Dude I was at Flip-Flop's last night and this drunk-ass rallycat was all up on me and like 8 other guys."
Guy 2: "Oh, she's one of those line grinders."
Guy 1: "Dude I was at Flip-Flop's last night and this drunk-ass rallycat was all up on me and like 8 other guys."
Guy 2: "Oh, she's one of those line grinders."
by Coach Sam Copeland January 24, 2010