quad
noun
1
a quadriplegic US, 1980.
2
in trucking, a quadriplex transmission that provides twenty forward gears and four reverse US, 1971.
3
the recreational drug methaqualone, best known as Quaaludes™ US, 1980.
4
a carburettor with four barrels US, 1965.
5
a clumsy, inept fool. An evolved SQUARE CANADA, 1993