Cloudybon is a mental state where your rational behaviour and judgement is affected by your horniness. 'i had cloudybon' roughly translated is 'my boner clouded my judgement'. Cloudybon is what makes you fuck a fat ugly girl, or cheat on your wife, in the heat of the moment.
"I'm sorry i cheated on you and fucked your sis but i had cloudybon'.
"I wouldn't normally link that fat bitch but i've got cloudybon so i've just got to stick it in ANYTHING".
"That's a cloudybon girl." (you'd only fuck her when you're really horny already.)