1)n. -- Herb(usually Cannabis Indica) that, when smoked, leaves you stranded on the couch.
2)v.-- The act or state of being clamp onto the couch, specifically after consumption of some Couch-clamp.
For over 3 hours, Timmy was suffering from a severe bout of the Couch-clamp.
" ...Dirty South, clean mouth, dirt road, packed bowl, couch clamp, revamp, explode, reload." The Gathering, One Big Love, Earth Music For Spacelings '05.