Adj. A combonation of the two words squeamish and scribble. In other a person who is easily excited and messy. Also calling some one Squibble implies they are a potential psychopath that will do very grim things.
"That guy is squibble, watch out he may kill you and perform necrophilia."
"Don't let her squibb on you or you'll never get it out of your clothes."
"Jeez, I'm not out 'til the end of the month now"
"Damn... well, make sure you squibble me sometime during the week, tell me what's goin' on, innit"
"Fo' sho'"
Portmanteau of the words, "squabble" and "quibble". Humorously used to mean grouching over petty stuff.
I got two rotten fruits in my bulk-produce purchase, but the items were all on sale and that particular store has always been exceptionally helpful and generous to me in the past, so I ain't gonna squibble about it.