Englishyahoo
noun
you're no yahoo; you're too smart:
barbarian, philistine, vulgarian, savage, brute, beast, boor, oaf, ruffian, thug, lout, hoodlum, hooligan, vandal, rowdy, bully boy, brawler;
informal clod, clodhopper, tough, toughie, roughneck, bruiser, hard man;
British, informal yobbo, yob, bovver boy, lager lout, chav, oik, ape, gorilla, bear, lump;
Scottish, informal radge;
North American, informal lummox;
Australian, New Zealand, informal hoon.
yahoo (1) Oxford Dictionary of English