–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!"