look up any word, like ratchet:
 
4.
A pony loving faggot who sucks huge and massive dick. He is an asshole and his first name usually starts with an N. His friends all hate him, and they normally refer to him as a pony faggot, as well as spam him over the internet. He likes to eat chips with his mouth open because he is a fatass. He has no brothers or sisters because he was adopted by 2 gay Russian supermodels. His vagina smells like horse because he is only fucked by ponies. In fact, that is the only type of porn he likes.
Screwball: I LIKE TO START PUNCHING BABIES IN THE FUCKING FACE WHEN PEOPLE START THROWING PONIES ALL OVER THE FUCKING PLACE, BECAUSE I LOVE PONIES. BRONY FOR LIFE.

Normal Person: Shut up you ponyfucker, nobody likes you.

Screwball: I LIKE TO EAT CHIPS VERY LOUDLY OVER TEH MICROPHONE. THEY ARE YUMMY BUT NOT AS GOOD AS PONY DICK.
by SCREWBALL IS PONY FAGGOT September 21, 2013
 
1.
an idiot who's insane
That's one crazy screwball
by puppydude April 12, 2004
 
2.
a babbling or ranting fool
that ranting evangelist sure is a screwball
by Daniel April 02, 2005
 
3.
1: A fool; and idiot; someone who is crazy

2: A type of baseball pitch
1: Man, he's a nice guy but he's such a screwball sometimes.

2: Woah, did you see that screwball?!
by zeemeister April 23, 2011
 
5.
A 50/50 mix of Powder Heroin and Powder Cocaine. Creates the feeling of being in a relaxing warm bathtub mixed with the desire to complete an insurmountable task. This volatile mix is usually mixed into a drink because snorting it is too risky.
Guy 1: "I heard that guy over there is selling "screwball"."
Guy 2: "That stuff will mess you up for days."
by Big Poppi July 28, 2014
 
6.
Screwballs means 'crazy people'.
'I just met two real screwballs'. Oddballs. Fruitcakes. Loaf heads.
by Dannyloco1 December 25, 2011
 
7.
a real screw up...no reference
you
by Anonymous September 25, 2003