Shellmonster

Someone who wants to be apart of a group but always stands to the the side, claiming to stay out of someones way. Too quite or afraid to step forward and speak their opinion.

Dude, why is your girlfriend always being a shellmonster whenever we are all hanging out?

by A-2-B December 17, 2008

Shellmonster

A flake. Someone who agrees to plans and does not show up.

Dude, Derek didn't show up. What a shellmonster.

by _kt February 3, 2017