While taking your girl from behind, (HOLD ON TIGHT) tell her "Your sister does it better!"
I was fucking my wife and told her the sister was better. BEST SEX EVER
by Boston Mike March 17, 2009

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Top Definition
When a dude tucks his junk between his thighs to make it look like he has a vagina.

(Equally funny whether shaven or unshaven)
Remember the time Grover got really wasted and came out of the bathroom buck-naked doing The Sister?!!
by Krebsy's Sister March 04, 2017

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Short for "The Sisters of Perpetual Indulgence." The Sisters are a world-wide order of 21st Century, queer nuns who serve the LGBTQ and other marginalized communities. The members of the all-volunteer organization, after an extensive training process, take lifelong vows in service of the community. Namely, to promulgate universal joy, expiate stigmatic guilt, and the pursuit of spiritual enlightenment. They accomplish their vows in countless ways, but the most common are through progressive, social activism, street theater, and non-denominational ministry without judgement. They also raise thousands, upon thousands of dollars each year which they grant out to those in need. www.thesisters.org
Hey, The Sisters are hosting Easter In The Park in GG Park again this year. The theme is "WTF Mary? Hunky Jesus, Take The Wheel." You wanna go with me? I bet you'd win the Hunky Jesus contest!
by SisterDharma Gettin' February 21, 2015

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