the act of vomiting into a girl's vagina before having sex with her. doing Acid Rain usually results in Hydrochloric Penis (burns on the penis from Hydrochloric acid, or better known as stomach acid).
by The Goatress November 18, 2010
by poochikins March 03, 2011
by T-P-L July 03, 2009
John: "Did you hear what happened to that kid down the street?"
Paul: "Nah, What happened, John?"
John: "He got acid rained on by some roadman"
Paul: "Nah, What happened, John?"
John: "He got acid rained on by some roadman"
by PebbleEscobar69 December 26, 2018
by The Rising Pylon November 28, 2007
the act of expelling gas (farting), then urinating on them. Similar to real acid rain caused by rain passing through hazardous pollutants in the air (smog)
by akhkhazu February 21, 2009
"I was curious why crazy joe grew asparagus, i found out later that night when he gave me acid rain."
by skeetmod valentine July 14, 2008