Crust is a word you use to describe something crusy, ugly,stupid, ect.
"did you see jessica missmatching today? omfg shes so crust.
Hags Means Have A Great Summer, usually used by 5th~6th graders when they think they are cute and quirky
omg i had such a great year jessica, im so sad you are moving sksksksk and i oop and i oop, anyway hags