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A name you give to someone, who has a big ass and is very loud. Also have great tits. Usually very good at having sex. Normally very kinky, but don't use them or fuck them over because they'll wip your ass.
Guy1: Wow her ass is dreamy! But omfg her laugh blew the roof off!
Guy2: Wow she speaks loud doesn't she? She must be a Simei!
by Nohappienesswithoutcqre April 13, 2016
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