Irp \Irp\, Irpe \Irpe\ ([~e]rp), n. [Etymol. uncertain.] A fantastic grimace or contortion of the body. [Obs.] [1913 Webster] Smirks and irps and all affected humors. --B. Jonson. [1913 Webster]
irp \irp\ ([~e]rp), a. Making irps. [Obs.] --B. Jonson. irradiance