to let out a fart

1 8.1

To let air out from your bottom so it makes a sound

phrasal verb

Offensive

: tirarse un pedo

As soon as she sat down, she let out a fart that surprised her friends.

Examples

In the quiet room, he tried to be discreet but let out a fart.
As I was about to come, I let out a fart.

Tigerland (2000)
Honey, with the way forensic science is these days, you could accidentally let out a fart when you killed somebody and the cops would know about it.

Bloodletting (1997)
Christa let out a fart, and all of us giggled.

Fiction book (1995)
"I WAS BRUSHING DOWN LUCY, THE NEW COLT, "WHEN SHE LET OUT A FART RIGHT NEAR MY FACE.

I Never Promised You a Rose Garden (1977)
During the meeting, he let out a fart that made everyone laugh.

Synonyms

to fart

vsto let out a fart

NSFW

96 5.3

To push gas out through the bottom, often with a sound

is specifically about noisy release rather than neutral release

to pass gas

vsto let out a fart

NSFW

5 5.9

To let gas out from your bottom

focuses on noisy release rather than neutral phrasing

to break wind

vsto let out a fart

3 6.8

To let gas out of your bottom

is the blunt noisy action rather than a polite expression

to pass wind

vsto let out a fart

1 6.5

To let gas from inside your body out through your bottom

refers to the loud physical emission rather than a polite phrase

to poot

vsto let out a fart

Baby Talk

1 9.8

To let out a small puff of gas from the bottom in a playful way

describes a loud noisy emission not a light playful one

to outgas

vsto let out a fart

Informal

8.1

To let gas leave the stomach by burping or passing wind

is narrowed to noisy anus emission rather than burping or general release

Surface Forms

let out a fart infinitive

let out a farted past

let out a farted past participle

letting out a fart present participle

lets out a fart third person singular

Morphology

let + out + a + fart

The meaning 'to expel intestinal gas' is directly compositional from 'let' (allow/produce) + 'out' (to the outside) + 'fart' (released intestinal gas), so a B1 learner who knows the constituents can infer the meaning. The indefinite article is semantically neutral and the construction 'let out + [noun]' meaning 'release X' is common cross-linguistically, reinforcing full transparency.

Etymology

Let out a fart paints a simple scene: let out means 'release' and a fart is the gas your body pushes out from your bottom, often with a sound. So the phrase means 'to release gas loudly', which is why people often feel embarrassed.