A big and tall dutch guy who'll do anything to hump your sister. He's climing in your windows, he's snatching your people up, tryin' to play them, so you'll need to hide your sister and hide your friends, 'cause he's humpin' everybody out here.

The typical Mr. Sister brews his own beer and studies Industrial Economics and Management
Mr. Sister: How is your sister?
Mr. Sister: I won't say anything about Sissel's boobs, but if it runs in the family....
by Another IEaTM January 11, 2011
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Mr. Sister Fister is a middle aged man who puts his finger his sister’s vagina
That man looks like/is a Mr. Sister Fister
by Hepatitis A January 29, 2018
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a human, specifically one human, of whom is superior to all beings and living things on earth, also the leader of an excellent religion known for its excellency, the followers are known as minions. thank you for reading this vital information.
mr. sister woman is the greatest human on earth!
by Chickindude June 19, 2021
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Also known as Caroline, but commonly known as Mr. Sister Woman's Sister, The assistant manager of the Mr. Sister woman Religion (advises Mr. Sister Woman on who should or should not be in the Mr. Sister Woman Religion, etc.) (Mr. Sister Woman being the superior being to all living things on earth) Mr. Sister Woman's sister is generally a very fun and energetic person. Could be considered the second most superior human on earth.
by Chickindude June 20, 2021
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