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4.
Sparkling: Unleashing a part of yourself that you normally keep contained
When the sonic rainboom reached Canterlot, Twilight started Sparkling.
by Clear Quill August 05, 2011
 
1.
When a male cums and then urinates in a females butthole. Can only be done with a female by one male. The two must mix.
Guy: I totally went sparkling with Girl #1 last night. It was awesome.
by fakename29034789 August 16, 2011
 
2.
Word used to used to express: amazement at a lack of logical thinking. Also used to express frustration (particularly when a process that should be easy is made difficult). Often used by the expat community in Korea based on a commercial which ended with “Korea Sparkling” and made no sense in English.
Person A: I went to the bank and it took an hour and half to transfer money.
Person B: That’s sparkling.
by Sojudictionary January 24, 2009
 
3.
A word made-up by the transformers fandom. They are suppose to be "baby" transformers. Normally this word is used by retarded fans. Robots don't have babies because they are made as adults.

SPARKLINGS ARE NOT REAL! THEY ARE MADE-UP BY THE FANDOM! Transformers cannot have kids because they do not have gender. Only frames and personalities that make them seem like they have gender.
Fan 1: OMG My OC and Starscream are in laaaav they need sparklings!
Sane Fan: What?
Fan 1: Sparklings! Babies!
Sane Fan: Robots can't have babies.
by Dr. Adorable January 23, 2011