smackdown

Obama's epic Republican smackdown has made him an internet hero
INDEPENDENT.CO.UK

Ballmer told the Seattle Times that he is retiring now because if waited until his youngest son went to college, as he had considered, that would put his departure smack in the middle of a big company transition. That echoes what he said in his memo to employees Friday. Ballmer told the Times his decision wasn’t prompted by pressure from shareholders, and he told ZDNet that it had nothing to do with the short term.

Definition of smackdown in English:

NOUN

informal , chiefly US

1A bitter contest or confrontation:the famously crusty Democrat had a series of smackdowns with the Governor

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2A decisive or humiliating defeat or setback.

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Origin

1990s: from smack¹.