he who smelt it dealt it

• whoever smelt it dealt it; you smelt it, you dealt it

he who smelt it dealt it

1. (colloquial, originally) A person who calls attention to or complains about a flatus is likely trying to pretend it wasn't their own.
2. (colloquial, by extension) A person calling attention to or complaining about a given problem may in fact be the source of the problem.

• Non-rhyming variants with smelled rather than smelt are almost completely unattested, even in forms of English that otherwise prefer smelled.

• he who denied it supplied it

• he who said the rhyme did the crime

• cut the cheese
• protest too much