OMFR, short for "Oh my fucking rod." The term "rod" is short for Rodney, from the internet video titled "Bubble Tea." This could also be interpretted as a paraody of OMFG, by replacing the g in God with an R.

Stems from the phrase OMG.

Internet persona(s) who happens to follow you and you happen to follow them back and maintain communication with and have a mutual liking for eachother whether it be friendship wise, etc. (Mutuals if more than one mutual)