Synonyms and related words :
also-ran, babe, boob, booby, butt, chump, cinch, credulous person, cull, defeatee, duck, dupe, easy mark, easy pickings, fish, fool, game loser, goat, gobe-mouches, good loser, good sport, greener, greenhorn, greeny, gudgeon, gull, innocent, leadpipe cinch, loser, monkey, patsy, pigeon, plaything, prize sap, pushover, sap, saphead, scapegoat, schlemiel, sitting duck, sport, stooge, sucker, the vanquished, toy, trusting soul, underdog, victim, whipping boy