A term mainly used over the internet, for example MSN or myspace. It is used...with the full stops...only when a comment has been made that has totally floored you. It is the ONLY response to be given to a floored comment.
(N.) The old South Park catch phrase up until 2002, when they stopped killing Kenny and he came back from the dead through the help of Chef's parents and yet another lame Rob Schnieder movie. ("Rob Schnieder is Kenny")
1) This is Ronny J’s signature for the beats that he produces for songs by rappers like XXXTentacion (God rest his soul), Lil Pump, Famous Dex, 6ix9ine, MGK, Comethazine and others. “Oh my God Ronny” is his personal signature that lets people know that he produced the song and helped to advertise it himself
2) Or you can use it in replacement of Oh my God just to add a hint of humour in the phrase.
1) *Listens to an MGK Song*
"Oh my God Ronnyyyy"
Me: What the fuck
2) *Is playing basketball*
*Friend gets a nice three pointer in*
Me: "Oh my God... RONNIEEEEEEEEEEE!!!"