Welsh English is lush, it is. Valleys slang is its own beast, musical, warm, and peppered with Welsh-language borrowings that give it a rhythm you won't find anywhere else, like.
Penny dropped
"I was staring at the maths problem for ages, then penny dropped and I nearly smacked myself."
Like a shot
"Offered him a lift to the match and he was out the door like a shot, coat half on."
Nosy parker
"Don’t tell the office nosy parker about the move, the whole building will know your new address by lunchtime."
Take the mickey
"Are they being serious about the prices or just taking the mickey?"
Carry the can
"He always ends up carrying the can for decisions he never even made."