None-One

This term is used in reply to someone who only drinks one shot and refuses to drink another because they're a coward.

Guy #1: How much did you drink?
Guy #2: One shot.
Guy #1: Want another? It's been awhile since we hung out!
Guy #2: Nah.. probably shouldn't.. *makes up lame excuse*
Guy #1: Wow, man. None-one! You're lame!