a'
A shortcut for the word 'at' when people are too lazy to say it properly and just spit it out like it's a curse. Sounds like a messed-up tongue twister.
A' the store, I saw my ex and I almost fainted.
I was at the park, but I said A' the park because I was too tired to talk.
He ran A' the house like he was being chased by a bear and a swear word.