A 'Clancy' is a teenage boy, aged from 12 to 16 who is namely fridgit and afraid to get with his girlfriend, let alone touch a girl. He doesnt want to hold her hand, kiss her, hook up with her or Make out because he is worried he'll be doing the wrong thing. The bets way to overcome a clancy is to talk to him about emotions and make him relax.
Girl 1: im so angry1
girl 2: why?
girl 1: my new bf is a clancy
girl 2: ZOMG YOU HAVE TO DUMP HIM
girl 1: i know -sigh_