adj. Mentally cleansed, espeically of behaviours, attitudes, or even memories considered "undesirable" by one partner. To truly shampoo a partner requires a great deal of effort to achieve the required level of obedience, but results in a docile and obedient lover who cannot conceive of not wanting to obey and please.
GF1: "Damn, Margot really shampooed her toyboy!"
GF2: "He doesn't even recognize his old girlfriends anymore..."
GF1: "She took him from free-range boi to shampooed toy!"
by Margot and Bubble May 26, 2009
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Day drinking after bingeing the night before. Much easier to sustain a good day drunk.
I had 3 beers and was shampooed by 2p.m.
by quattroinsanity February 01, 2011
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A concoction used to cleanse one's scalp. Its ingredients consist of:

1 part sham
1 part poo
Dang, I wish Greasy Gary would use some shampoo.
by Wojeezy May 24, 2008
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What some people call the Orca whale Shamu at Seaworld in San Diego USA.
{trainer in the water with Shamu}: Here Shampoo!
{Shamu} Emits several brief squeals and then douches his trainer rather thoroughly with huge jets of water
by Telephony August 12, 2016
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To indulge in alcoholic consumption the following day/night after getting completely shitfaced the night before. Usually it's easier to get drunk that next night.
Kate and Lauren are shampooing in the fratmosphere again tonight!
by Fropaholic June 23, 2009
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When you drink a LOT one night, and then the next day you drink a little but get very drunk. Just like when you shampoo and you just use a little bit and get tons of suds.
I only drank a beer but I shampooed from last night. I'm wasted !
by Oshkosshbygosh April 27, 2014
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