My God, What Is It

Why, it's number 22 in my countdown of my top 25 MST3K episodes, of course! It's the only movie to star a monster made up almost entirely of carpet samples - 606 "The Creeping Terror"...

Synopsis, from the MST3K Amazing Colossal Episode Guide:
"Vic Savage and Shannon O'Neill are young newlyweds terrorized by a huge caterpillarlike monster who lands on earth in a spaceship. The monster creeps and terrorizes, ingesting whole humans (who help him out by crawling into his mouth/hole/opening/thing/deal). In the backfilled epilogue, the creeping terror - who looks like a bad Chinese dragon - is declared "a creature from beyond our solar system", a highly specialized test animal sent to Earth to eat humans and record their data in its internal computer. A grenade finally destroys one of the creeping terrors, but another one has been loosed, and Sheriff Vic Savage runs his car into the other. Most of the dialogue has been replaced by narration which goes off on odd tangents."