wack out
C1 slang inseparable intransitive
In simple words
To start acting really weird or crazy, or to lose control of yourself.
Literal meaning: To 'wack' something out — slang origin; 'wack' meaning crazy or bad.
Meanings
1 C1
idiomatic
slang
To suddenly behave in a very strange, irrational, or erratic way.
"He totally wacked out when he heard the news and started shouting at everyone."
Grammar: inseparable
2 C1
idiomatic
slang
(Of a device or system) to malfunction or stop working properly.
"My laptop just wacked out in the middle of my presentation — the screen went blank."
Grammar: inseparable
Usage notes
Primarily American slang; uncommon in British English. The spelling 'whack out' also appears. Mostly used in casual speech among younger speakers. May also be used to describe a malfunctioning object.
Commonly used with
completely totally suddenly person system
Forms
Base
wack out
I/you/we/they
3rd person
wacks out
he/she/it
Past simple
wacked out
yesterday
Past participle
wacked out
have + pp
-ing form
wacking out
continuous
Understand "wack out" better
Try:
Real video examples
Video examples are being collected. Check back soon.
Synonyms
Want to master this phrasal verb?
Practice "wack out" on Looplines