"Warsh yer hands after you use the terlet" - what accent?

With no context, who can possibly say? The ordinary alphabet - heck, even the phonetic alphabet - does not provide anything like adequate resources for conveying the nuances of accent. Hence we have answers that range from Surrey to California, and most points between.

Where did you hear this? That might provide a clue.

Orange County , NY, strarberry, warsh, certainly, woudn’t remember terlet, one didn’t talk about it. Go warsh your hands (very clean with good soap and don’t wet the floor)