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1 definition by Benjamin Brahma

–adjective or verb
A phrase describing the state or the action of an individual or an object acting up, going bonkers or freaking out.

Bonkers, nuts, crazy, wild, ballistic, cuckoo, haywire
1: "One minute my computer was working perfectly and the next minute it went banana sandwitch"

2:"They told me they lost the paperwork."
"Did you get mad?"
"I went absolutely banana sandwitch!"
by Benjamin Brahma May 29, 2009