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2.
large gathering of people skipping an organized school field trip
"You going on the class trip?"
"Nah, anti-trip, beach, you in?
by majoringinparty2010 March 20, 2009
 
1.
When a sudden incident makes you start having a bad high, it goes against the traditions of tripping.
1. "Don't crack bad jokes man, I'll begin to have an Anti-Trip"
by Nalyr Almeida December 06, 2010