I don't usually go around correcting people's grammar and spelling but this is pretty hilarious and I thought I'd spare you future embarrassment by tipping you off on this...
"cottoned on to this"
The expression I believe you're trying to use is "caught on to this", as in "catch".
Bro, whoever you're hanging around and introduced that expression to you, I'm assuming they're saying "caughtened on to this" (which is still incorrect and also poor grammar) and you were led to believe it had something to do with the fluffy stuff. You need to hang around brighter people.
/end rant.
While I don't usually correct people, I thought your tone was fairly rude. 'Cottoned on' is a well understood expression, at least in the UK. Maybe the original poster was from a different country to you? I thought I'd save you future embarrassment if this comes up again:
To cotton to means to like, to admire or to become attached to. The allusion is to a thread of cotton which very easily attaches itself to clothing for example. It is an expression which is not used very much any more in contemporary British English.
Much more common is the colloquial expression to cotton on to which means to catch on or to grasp a line of thought:
They didn't know much English and it was surprising how quickly they cottoned on / caught on to what I was saying.
He still hasn't cottoned on to the fact that I'm not in the least bit interested in him.
The allusion is the same as before: cotton fibres or threads which become attached to clothing.
http://www.bbc.co.uk/worldservice/learningenglish/grammar/learnit/learnitv164.shtml