[back-formation from haIRy] The complications that make something haIRy. "Decoding TECO commands requIRes a certain amount of haIR." Often seen in the phrase "infinite haIR", which connotes extreme complexity. Also in "haIRiferous" (tending to promote haIR growth): "GNUMACS elisp encourages lusers to write complex editing modes." "Yeah, it' s pretty haIRiferous all right." (Or just: "HaIR squared!")