A sexual term, referring to a threefold experience. The first part of the experience is the consumption of sedatives or 'downers', such as ketamine, the second part is the recieving of sexual gratification via the partners (or 'eggers') hand stimulation, the third part is the 'surprise' (hence the name), usually something along the lines of throwing the reciever off of a bridge or footpath, into a river or canal just as their sexual climax is experienced.
-He kinder-egged her good on Martin's bridge, right into the water and she was pissed!
-She gave me a right kinder-egging the other night!
-She gave me a right kinder-egging the other night!
by thealmightybasstardo April 13, 2011