Something out of the ordinary, something so amazingly awesome it will make you second guess everything you've been taught, yet you still cant seem to look away. Anyone given the status of illregular is a true prodigy and should be treated like a king
-"Woah!! Did you see how Justin was gettin it at the club last night?" "Yea man I've never seen anyone dance with 8 women at once like that, that shit was illregular.
-"Omg Becky the things me and jimmy did last night is illegal in 8 states it was so illregular"