the dirty straw is when two people are making out, and one of them burps silently but does not stop kissing, and the result is that the one person blows their burp breath into the other person's mouth. this is called giving someone the "dirty straw".
"I was really turned on by Mike's kissing, until he had the nerve to try to get away with giving me the dirty straw. It was disgusting."
by John Muller January 9, 2006
by AnalisaPaine August 19, 2011
When your girl let you do her in the ass and you pull out to give her a break cause it's hurting her. Then you look down to see shit on you dick so you get turned off and go limp.
We were having anal sex in the shower last night and but we didn't finish cause she gave me a dirty straw.
by 89anderson June 11, 2017