Humour that is characterized by coarse references to bodily functions.
‘this is a land renowned for its lavatory humour’
‘He is the incarnation of the ocker, with his lavatory humour.’
‘Their effort at comedy is simply obnoxious and unfunny as it takes cheap shots at race, midgets, and mental illness, along with the usual lavatory humour.’
‘The article is sadly representative of the offensive, schoolboy, lavatory humour which masquerades as entertainment in a number of programmes.’
‘There would be few adults who could say that their childhood was completely devoid of lavatory humour.’
‘Lavatory humour, provided it isn't over the top, usually amuses a wide cross section of people.’
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