look up any word, like darude - sandstorm:
 
1.
verb (passive)

When a girl who is friends with several members of a social fraternity hosts a party at the same time as one of said fraternity's off-campus pledge program events.
Brother 1: Who all is going camping next weekend?
Brother 2: You must be mustarded. No one is going. That event got esthered.
by Attmay Ustardmay October 15, 2006