Quad

/kw├Ąd/

n. 1. Two bits; syn. for quarter, crumb, tayste.

2. A four-pack of anything (compare hex, sense 2).

3. The rectangle or box glyph used in the APL language for various arcane purposes mostly related to I/O. Former Ivy-Leaguers and Oxbridge types are said to associate it with nostalgic memories of dear old University.