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1.
–adjective or verb
A phrase describing the state or the action of an individual or an object acting up, going bonkers or freaking out.

Synonyms:
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

Words related to Banana Sandwitch

ballistic bonkers crazy going nuts haywire