-Negative connotation
1) The oppostie of fresh
2) Unstylish or poopy; often reffering to clothing or appearance 3) Uncool or informal; often rather unfitting into the category of awesome
4) Simply unawesome or mean; describing behavior or one's actions
"Bob has swag, he's very fresh. On the other hand, Fred is really akward and is rather crusty"
(Adj.) The feeling one has after a night of modererate binge drinking that is not quite hungover but clearly uncomfortable. Related symptoms are stickiness, brain foggynes, and general dehydration (one could go so far as to say 'parched'.
Someone who is part of extinction rebellion ... according to the current Prime Minister Boris Johnson.. People are proud to be a crusty, some absoloutley revolted. Its only a way for him to get through brexit sadly, by shaming protesters.