Somebody who constantly writes on someone else's formspring, anonymously or not. Typically incredibly annoying and leads to clogged feed.

Anonymous clingers mostly turn out to be immature teens who live their life on the internet and have few or no friends in real life.
Bill: Dude, I got like 400 questions on Formspring from Suzie yesterday!

Bob: Uh-oh, you've got a Formspring clinger. Commence evasive maneuvers.
by The Gnargoyle August 20, 2010
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a person who has obtained the highest level of cling; one who clings at all costs.
The bitch we met at that party is a class-5 clinger and will not leave me alone.
by Danworth Norris July 4, 2006
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When you start dating someone and they end up being a total STALKER and CLINGY. They often start slowly and work their way up to letting you know they are a Stage 5 Clinger.
1. They will begin by being sweet to you and calling you. Everything will seem perfectly fine,
you will think 'WOW I have an Amazing Gf/Bf.
2. Suddenly they begin by asking you "WHY DIDN'T YOU ANSWER MY TEXT!"
"WHY DIDN'T YOU CALL ME BACK!"
"WHERE ARE YOU!"
3. They can also be very DEADLY to You or Themselves.
(They might even hurt themselves if you don't break it off early enough.)
"He's acting like a Stage 5 Clinger, One moment he's leaving me alone and then the next moment he's threatening me because I didn't text him back. HELP ME!"
by rawrkitten101 April 2, 2015
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1. A potential romantic and/or sexual interest who quickly reveals him or herself to be too forward and needy. A pursuit that one suddenly realizes one must at once stop pursuing because they have, in turn, become the pursued. Fatal attraction to the extreme, indicated, most often, by excessive communication across various media, simultaneously (texting, email, Facebook, Twitter, postal mail, showing up at your place of work and/or school, phoning you, until you finally reply, and often relentlessly even if/when you do).

2. Also, Stage 5 Clinger. Same meaning as above; a person to whom one is not mutually attracted, at least not near so intensely or desperately. A person who makes inordinate assumptions of commitment and intimacy when in reality there is absolutely none, since both parties have not logically had enough time to commit or get close, nor shall they due to the clinginess.
1. "Bro, the date last night with Cheryl bombed majorly--total Stage Five Clinger. Woke up this morning to 563 texts and the emails are still comin' in...wants me to meet her parents and be her 'first'...."

2. "Ugh. Stage 5 Clinger. 'Nuff said!"
by PicklePuss November 15, 2013
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A member of the opposite sex that is likely to become overly attached, overly fast. Virgins, those on the rebound, and the emotionally fragile are more likely to have this term applied to them. Orignally from the movie Wedding Crashers.
We need to get Nick away from that chick. She's a stage five clinger.

We've got a stage five clinger situation. I need someone running interference on the blonde behind me, now.

I nailed that chick last weekend and seriously regret giving her my number - I'm getting 2 or 3 calls a day. I think what we've got ourselves here is a stage five clinger.
by Dan Everett April 10, 2006
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When a man sleeps over at womens house once and never ever leaves again
WOW! Mark lives with that girl now what a one night clinger
by Rico no suave July 1, 2015
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One stage above a stage 5 clinger. This person did not derive their obsession with the opposing person through sex, but simply through a random act of kindness. If you have ever been called at 4am and the other person "just wanted to talk" you have a stage 6 clinger on your hands.
Fred: Jane is such a stage 5 clinger.
Jack: Did you guys have sex?
Fred: No.
Jack: Well then she is definitely a stage 6 clinger.
by B.A. Trustwurthy March 30, 2010
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