the short bus 

Slow thought process. It refers to the bus that transports the disabled kids to and from school, not to be confused with the senior citizen's bus.

Did you come in on the short bus today?

the short bus by friendsoftina January 5, 2004

ride the short bus

V. A derrogatory phrase derived from the smaller school bus used to ferry special education students to and from school. 1) To act in an immature or stupid way. 2) To be an immature or stupid person. 3) To drive an especially large S.U.V.

Johnny is such a dumbass, he definitely rides the short bus.

ride the short bus by snarkette April 23, 2003

riding the short bus

Someone stupid. A dumbass or gimp. Basically, being retarded.

That kid's riding the short bus.

riding the short bus by krazykangaroo March 20, 2005

Yuppie Short Bus 

A bright-yellow Hummer 2 SUV.

Derived from the schoolyard slang term short bus--the bus mentally retarded and disabled students ride in--and the fact that, like American school buses, it is bright-yellow and black. Unfortunately, in the case of the Yuppie Short Bus, the retarded person is usually in the driver's seat.

While crossing the street, I almost got creamed by an asshole driving a Yuppie Short Bus and yakking on a cell phone.

Yuppie Short Bus by Bitchy McBitchalot March 17, 2005

get off the short bus 

an expression used to tell someone to stop acting like such a retard or to pay attention.

Person 1 (usually from a bible belt state): "Hey man, I think intelligent design is good theory."

Person 2 (not from a bible belt state): "Man get off the short bus."

get off the short bus by mistahtom July 18, 2006

mexican short bus

The act of using taco sause or salsa as lubricant either for the anus or vagina

We ran out of lube last night so while rosita wasn't looking i gave her a mexican short bus

mexican short bus by Crazy mandy September 14, 2017

Souped Up Short Bus 

2. Anything so rare that seeing it even once is noteworthy.

2. I saw Muamar Gadhafi at a NASCAR competition, wearing a Charlie Daniels Band T-shirt and a pair of cutoffs. I was so shocked, it was like seeing a souped up short bus.

Souped Up Short Bus by The Fourth Man in the Tub March 21, 2011