A person so socially inept that they themselves are unaware of their own rung on the social ladder. Social vegetables are literally unaware of social distinctions altogether, and are incapable of understanding the concept.
Basically, it is a person who, socially, has their head stuck in the ground, like a vegetable sprout, incapable of comprehending their own plight. Also, similar to an incapacitated person in a vegetative state (aka, a vegetable), but socially. Social vegetables should be studied from a distance and never interacted with, for engage a social vegetable in social interaction has unpredictable results, ranging from awakening a suicidal maniac to turning that person into a social leech.
Hey Mark, look at that kid over there in the suspenders and pokeman shirt sitting by himself. I think he's in my psych lecture. Man is he a social vegetable.
To be "in the shop" means that one is recovering from a particularly brutal hangover. Usually seen lying on the bed, couch, floor, etc. covered head to toe with a blanket. Similar to putting your car in the shop for a tuneup, but your body (especially your liver) is getting the tuneup.
Todd: Hey Kevin, where's Rob? He was pretty drunk last night.
Kevin: I dunno, last I saw him he was lying on the couch covered completely in a blanket.
Todd: Oh, he must be in the shop.
When a man strips naked, places a sock over his cock and balls and walks around in the presence of others. Usually performed at parties by intoxicated individuals for shock value and laughs. Individuals performing "Sock Man" frequently have their clothes stolen while in the act, or are forcefully removed from the party into the street.
Did you see Sock Man at the party last night? We stole his clothes, threw him out in the street and locked the door. We found him alseep in the alley this morning under a welcome mat.