When someone washes their hands prior to shitting but not following
Unfortunately I walked into the bathroom of the restaurant and caught the chef pull a reverse osmosis- apparently he didn't want to get my dinner on his asshole but had no problem with the contrary.
by Janet Fupa July 12, 2013
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When a chick performs a reverse cowgirl on you while your in a jacuzzi.
"Woah dude, she did that reverse osmosis on me last night."
by beardedclamm October 26, 2011
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The extremely rare process in which a woman actually loses weight after getting married and or having children…
Wow, she looks better now then she did before having the kids !!! Talk about "Reverse Osmosis", that breastfeeding thing really does a body good !!!
by Sombeach82 June 24, 2010
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The process of osmosis, or learning something while you are asleep, but the thing/person learning is awake.
Fuck this osmosis shit, sleeping is hard. Reverse osmosis is the shit!
by ManguyManguyguyguy October 14, 2020
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When you're driving and the person in front of you is following you
Angel: Dude we've been behind this car for 30 minutes
Ray: Maybe we're getting reverse osmosised bro!
by Fuckassdick122 September 3, 2015
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The process by which straight male behavior traits pass through a porous cultural membrane in the direction of a gay male friend subject to a hetero-static pressure greater than the homo-osmotic pressure.
Gay males who spend adequate time engaging in activities with their straight male friends become marginally 'less gay' through the process of what is known as "reverse gay osmosis".
by Dr. Sal Rosenpenis January 30, 2023
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