The act of ejaculating on top of another persons shit which is still floating in the toilet.
I forgot to flush this morning and some one rainvilled on my shit!
by mr. showtime100 April 17, 2012
1 more definition
THE ABILITY TO BE LATE FOR WORK TWICE IN THE SAME DAY
ANTHONY MANAGED TO ARRIVE LATE FOR WORK TODAY, TWICE, HE SURE RAINVILLED THAT!
by J-nETTE July 03, 2010