While tripping on dex(DXM), a common side effect other than deteriorating your entrails is known as the coricidin face. The face of the tripper usually consists of: dilated pupils, a frustrated grimace, facial numbage, and overall confusion. By the face and the voice of the specimen, it is usually obvious when someone is DEX trippin.
Wagz - Hey did you guys see Buchser last night?
Duff - Yea he had coricidin face like a motha fucka! Trippin Balls!