barbarian, beast, boor, brute, churl, lout, philistine, roughneck (slang) rowdy, savage, yob or yobbo (Brit. slang)
English Collins Dictionary - English synonyms & Thesaurus
yahoo ( yahoos plural )
Pronounced jɑ:hu: for meaning 1, and jɑ:hu: for meaning 2.
1 exclam People sometimes shout `yahoo!' when they are very happy or excited about something.
2 n-count Some people refer to young rich people as yahoos when they disapprove of them because they behave in a noisy, extravagant, and unpleasant way.
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