Had a stinker

Chiefly Northern (England) slang,

Doing something embarrassing, or cocking something up

“Yeah I had a stinker last night, boffed from three beers”

“We’ve had a stinker here, this club is shite”

“I was talking to this girl and asked for her number, at which point she ran off laughing. Safe to say, I’ve had a stinker”

splat attack

The aftermath of severe diarrhoea whilst using the lavatory.

Jesus Christ that was a splat attack, you might want to give that a minute