[syn: fink, snitch, snitcher, stoolpigeon, stool pigeon, stoolie, sneak, sneaker, canary]
The Collaborative International Dictionary of English v.0.48:
Sneaker \Sneak"er\ (sn[=e]k"[~e]r), n.
1. One who sneaks. --Lamb.
2. A vessel of drink. [Prov. Eng.]
A sneaker of five gallons. --Spectator.
3. A type of soft shoe with a flat, pliable, typically rubber
or other soft sole, and canvas-like upper, used in sports
such as tennis, or for comfort. Called sneaker because
they give no warning of one's approach. Usually used in
[Webster 1913 Suppl. +PJC]
4. A punch bowl. [Obs.] --Spectator.
[Webster 1913 Suppl.]
WordNet (r) 3.0 (2006):
n 1: a canvas shoe with a pliable rubber sole [syn: gym shoe,
sneaker, tennis shoe]
2: someone acting as an informer or decoy for the police [syn:
fink, snitch, snitcher, stoolpigeon, stool pigeon,
stoolie, sneak, sneaker, canary]
The Jargon File (version 4.4.7, 29 Dec 2003):
An individual hired to break into places in order to test their security;
analogous to tiger team. Compare samurai.