conventionally used at a public place, preferably a grocery store or convient mart as a way to explain an arousing outburst of un explainable excitement!

So many variations of the term that can goofily be assembled to properly annoy the hell out of numerous crowding, unexpected civilians

the term is usually started off with a humble yet sneaky "ah ha yeah"... which than builds up with a either a double "ah", even than to a double or a triple, ridiculously high-pitched "ha" ending either the charming flow of the "yeah"
"Somebody wanna shout ah ha yeah?!" (very gospelesque)

"Damnit, gimme an ah ha yeah!"

MATTY SHOE: "AH HAAAAAAAA YEAH!!!"
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