Grreeeeeeeet - extraordinarily good or fantastic said in a Irish accent ; used especially as intensifiers, when it is said, you have to be feeling a howling success. Must roll your "R's" to pronounce correctly.
"this is going to be Grreeeeeeeet "that movie was Grreeeeeeeet!"; "that is a Grreeeeeeeet! That is a Grreeeeeeeet collection of blue shorts"; "the sex last night was Grreeeeeeeet"