A Fling-Ding is a word used in replacement of any other word. The origins of the word Fling-Ding stem from references to one's belly-button, their navel. However, the word as come to be used to describe just about anything lacking a description, or an appropriate name. Especially if one cannot recall the name of something in specific.
I just got a sweet piercing on my Fling-Ding!!!

OMG, does anyone know where I put my, my umm, ugh i cant remember what its called. Where is that Fling-Ding?!?!
by skwirl_lovr April 15, 2011
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to flirt with someone over facebook and make it seem like they are a "thing"
Jack: I'm gonna win this poke war
Maggie: No way im gonna win(;
Jack: maybe.. but when are we gonna hang out?
Maggie:Ahh i dont know! Soon though!(;

Later..
Megan:Did you see Jack and Maggie facebook flinging?
Devon: I know it's getting annoying. why don't they just go out?
by momolove4 April 1, 2011
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A relationship that never quite worked out but always down to fuck whether or not the two are involved with other people
Hey girl, I was with my boo-fling last night, it was hawt.
by Dr. Lush July 6, 2009
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Another word for ROTFL

Rolling On The Floor Laughing
Thing 1: OMG that was so funny I almost peed my pants
Thing 2: Rot Fling!!
by jthemancashmoney July 14, 2009
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The repetitive and frantic flinging of a penis as a man is climaxing. The orgasm is intensified, but cum gets everywhere. The use of a condom or other such mechanism to reduce your cum footprint is discouraged by official practitioners of the act. It is generally performed solo by a masturbating male, but it is very possible for a partner to lend a helping hand.
I just had a highland fling, and now I can't seem to turn sticky keys off.
by Cat's Pajamas June 9, 2016
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Bling purchased for spouse or girlfriend as reparations after an affair.
DANG! Did you see the Fling Bling Kobe gave his wife?!
by The A Team Sucka August 27, 2009
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A person who is attractive, and worth it to screw, at least one time, if not many. This person may not be your type, or you may be committed to someone else, but you consider them worth having at least once.
Would you go out with me?; No, but you're Fling-Worthy!
by DJ DJizzle December 30, 2011
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