What is the meaning of Gyp?

A cheat or swindle; a rip-off.

Synonym of gypsy (contra dance step)

To cheat or swindle.

A domestic servant, generally male, who would attend upon (usually several) students, brushing their clothes, carrying parcels, waiting at parties and other tasks; generally equivalent to a scout in the historical sense at Oxford University or a skip at Trinity College, Dublin.

The room in which such college servants work.

A small kitchen for use by college students.

Gypsophila.

Pain or discomfort.

Source: wiktionary.org