bash one out
C1 slang separable transitive
In simple words
A very rude British slang phrase for masturbation; can also mean to quickly make or do something.
Literal meaning: The 'one' acts as a vague object replacing the thing being bashed out — the idiomatic sexual meaning requires cultural context.
Meanings
1 C1
idiomatic
slang
(Vulgar British slang) To masturbate.
Grammar: separable
2 C1
idiomatic
informal
To produce something quickly and without much effort.
"Can you bash one out before the deadline? It doesn't have to be perfect."
Grammar: separable
Usage notes
The sexual sense is the primary and most common meaning in British English and is considered vulgar. Learners should be extremely cautious — use only if you fully understand the register. The 'produce quickly' sense is a secondary, safer usage based on 'bash out'.
Commonly used with
email letter tune song quickly
Forms
Base
bash one out
I/you/we/they
3rd person
bashes one out
he/she/it
Past simple
bashed one out
yesterday
Past participle
bashed one out
have + pp
-ing form
bashing one out
continuous
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