The Collaborative International Dictionary of English v.0.48:

Gip \Gip\, v. t.
   To take out the entrails of (herrings).
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Gip \Gip\, n.
   A servant. See Gyp. --Sir W. Scott.
   [1913 Webster]

WordNet (r) 3.0 (2006):

gip
    v 1: deprive of by deceit; "He swindled me out of my
         inheritance"; "She defrauded the customers who trusted
         her"; "the cashier gypped me when he gave me too little
         change" [syn: victimize, swindle, rook, goldbrick,
         nobble, diddle, bunco, defraud, scam, mulct,
         gyp, gip, hornswoggle, short-change, con]

The Free On-line Dictionary of Computing (30 December 2018):

GIP

   1. General Interpretive Programme.

   A 1956 interpreted language for the English Electric
   DEUCE, with array operations and an extensive library of
   numerical methods.

   ["Interpretive and Brick Schemes, with Special Reference to
   Matrix Operations", English Electric COmpany, DEUCE News
   No. 10 (1956)].

   (1994-11-02)

   2. An erroneous singular of GIPS.