by Might April 9, 2004

1. the putative use of the inside of a banana peel as a halucinagenic drug (a 1960's hoax that became connected with an urban legend about a song of a similar name after the debut of the said song, and susequently spawned more hoaxes, sense 2 is likely also linked to the song)
2. Lysergic acid diethylamide, a hallucinogenic drug
3. a five milligram tablet of valium (from the yellow color of the tablet)
2. Lysergic acid diethylamide, a hallucinogenic drug
3. a five milligram tablet of valium (from the yellow color of the tablet)
by The Return of Light Joker April 5, 2011

A joint/blunt rolled with "mello mango" (or any other mango flavored rolling papers), marijuana, any non-pot cannabis related substance, crushed up percocet and the tobbacco inside a Marlboro Smooth menthol cigarette
Hey man, we need to enjoy the scenery more. Let's mellow out. You know man, really get in touch with nature. We need to smoke a Mellow Yellow man. Listening to Led'll do that to you man.
by Tricky Stevensen June 16, 2010

When you're fucking a bitch who is so ugly that you can't get hard, so you pee in her.
see sour puss
see sour puss
by Rev. Reggie Dingleberry August 18, 2004

by eat my boogers October 16, 2010

by LizardInACan November 25, 2012

1. Another term for heroin, due to heroin sometimes having a yellowish white appearance and being the ultimate mellowing out drug, the name "Mellow Yellow" was coined. Commonly mistaken and misused to refer to other drugs.
2. The name of a 1967 song by Donovan, who was referencing heroin usage, ironically this song has been used in multiple family oriented ad campaigns for food and drink.
2. The name of a 1967 song by Donovan, who was referencing heroin usage, ironically this song has been used in multiple family oriented ad campaigns for food and drink.
by Azthetic April 14, 2016
