Definify.com

Webster 1913 Edition

Adj.

[AS.

slipeg

Slippery.

Adj.

Slippery. [Not in use.]

slippy ‎(comparative slippier, superlative slippiest)

(slightly informal) Slippery.
- 1922, James Joyce, Ulysses Chapter 13
  It was darker now and there were stones and bits of wood on the strand and slippy seaweed.
(dialect, dated) Spry, nimble.
- 1913, D.H. Lawrence, Sons and Lovers, chapter 5
  Well, come on then, let's look slippy.