the awful smell of a persons bad-breath, often during early morning, or last thing at night, an often terrible whiff of a bad stench,
Jeez, did you smell the breath of her, it smelt like she had been eating shit butties,
by Lee Wylding December 17, 2009
When someone tells a poor or offensive joke that nobody in the audience laughs at, it is said to have gone down like a "shit butty"...obviously something unpleasant to the system.
"Ian Foster told the guys a joke about homosexuals. Nobody thought if was funny. In fact it went down like a shit butty."
by Julien Holden July 20, 2006