quad 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 Oxford types are said to associate it with
nostalgic memories of dear old University.