Obamarrhea Share definition Flag noun - Diarrhea brought on by either hearing,seeing or experiencing any of Obama's political decisions. "Oh man...I just watched Obama's press conference and got such bad Obamarrhea." Obamarrhea by Mr. ChuckleFart July 13, 2009 0 0 Get merch Get the Obamarrhea mug. Buy Now — $32.95 See more merch