[TrevorG]

At Stetson the only thing I've heard us called is Sig Nu.

Other frats are called:

Lambda Chi Alpha = Lambs

Delta Sigma Phi = Digs (They used to bury their pledges up to their heads, they are trying hard to change the nickname to "Delta Sigs" but its not really working)

Sigma Phi Epsilon = SigEp (same everywhere I think)

Phi Sigma Kappa = Phi Sigs

Pi Kappa Alpha = Pi Kaps.