Another way to say cigarette.
especially useful to any group of people inebriated by psychedelics (particularly, a dangerous dosage of LSD and shrooms) due to the bursts of laughter in the tripper's friends generated by the utterance of this word, whether purposely or accidentally slurred.
smoke + cigarette
1: ok, ok... enough ripping on that ugly bitch, my sides hurt. i need a smigarette
2: (hysterical laughter)
2: damn these must be some good mushrooms, 'cause i swear you just said 'smigarette'