1. A derogatory term used to describe someone that constantly loses on a pool table that requires coins to be inserted in order to rack up the balls and play another game.
2. Any NPC in an MMO game that can be easily killed and drops a substantial amount of in game money.
A person who changes sexual preferences and sexual identities alot. Someone who will become attracted to same sex gender at the flip of a switch, or "tossing of the coin". Someone who will randomly change their entire sexual identity without much thought (ie Hetero to Drag queen).
"Oh no! Donna, why is my boyfriend Dave sucking Bob's dick?" "Amy, didn't you know he was a coin-tosser when you met him? Yesterday he was dressed in drag and kissing my mother."