When a male if fucking a female doggie style grabbing the back of her head and slamming her head into the head board or pillow (like a charging rhino) repeatedly while she yelps for you to stop.
Sally-"oh, my head really hurts this morning"
Betty-"Why?"
Sally-"You know how Billy always said he wanted to go on a safari?"
Betty-"Ya."
Sally-"Well last night Billy was Rhino fucking the shit out of me and now the headboard is broken and i think i have a concussion."
When something in life fucks you beyond the normal everyday stroke of bad luck like a parking ticket or stepping in a puddle; akin to an adult male rhinoceros penetrating you from behind, i.e. more than a serious bummer.
"Geoff was seriously rhino fucked when his wife found a group text thread full of boobs and bush and kicked him out of the house."
To be kicked in the small of the back without warning and appropriately named after a charging rhino rearing up and planting it's horn right up in the small of your back, kicked without warning usually extremely painful especially if you're over 18
Yo dude I'm sorry How did you kick me so hard I don't know what did it feel like, being Fucked by a rhino.