A phrase originating from the Youtube poop "The Life and Death of Mr. Hill," based off of the King of the Hill TV series. In this poop, Hank is sitting in a barber's chair and tells a story. Afterwards, the men around him chuckle. He responds to this with "haHA LOL."
Use this to show a vigorous form of laughter.
"GOOD ONE HANK! HAHA LOL!"