Verb or adjective: Meaning to totally forget about anything rational or to make completely inane and rambling conversation.
by bluhipo September 26, 2005

While having sex with someone doggie style (from behind), one reaches forward and inserts their fingers into the corners of the reciever's mouth. One then pulls back on the corners of the reciever's mouth effectively creating a large smile resembling that of Ronald McDonald, the clown mascot for McDonalds.
Billy was doing Sarah last night and decided she needed to cheer up, so he gave her The Ronald McDonald. It didn't work!
by BDT of Utah March 16, 2009

During the act of intercourse with a female, usually in the doggy style position, the male smashes a burger into the face of the female (generally overweight). The act is then topped off with a punch to the back of the head, a la the donkey punch.
I heard about this guy that Ronald McDonald'd this fat chick, used a big mac to do it. It was messy.
by thebigmac September 7, 2008

Being a ronald is being gay or stanky and he doesn’t brush his teeth and smells like unexpected car crashes
by Shhssvs January 16, 2019

by Mochi11 May 22, 2021

by happyfuntiem January 13, 2021
