Definitionen
1.NounA soldier armed with a pike, a pikeman.
2.NounOne who bets or gambles only with small amounts of money.
3.NounA stingy person; a cheapskate.
4.NounAn amateur.
5.NounA bullock living in the wild. (Also used attributively.) .mw-parser-output .defdate{font-size:smaller}
6.NounOne who refuses to go out with friends, or leaves a party early; a spoilsport or "chicken"."Mate, don't be a piker! Come to Angie′s birthday party tonight!"
7.NounOne who pikes (quits or backs out of a promise).
8.NounA male freshman at Cornell University.
9.NounA tramp; a vagrant.