Johnny On The Spot 

Being ready to perform a task or duty right away, being there for something;reliable

When the firefight starts, you have to be my Johnny on the Spot with the ammo.

Johnny On The Spot by Jeff K August 7, 2005

Johnny on the Spot 

A portable toilet, or commode.

Man in nursing home: What the hell is that?
Nurse: It's a bedside commode, sir.
Man: I DONT NEED NO DAMN JOHNNY ON THE SPOT!!! I CAN WALK!

Johnny on the Spot by Paul Bishop December 14, 2008

johnny on the spot 

The act of shitting on the sunroof of a car, which results in fecal matter splattered on the driver's head/face upon opening the sunroof.

I climbed up on Meredith's car and left her a little johnny on the spot before she left this morning.

johnny on the spot by "Jim Douche"/Erik Higbie August 19, 2009

Johnny On The Spot 

A perfectly located restroom; port-a-potty.

Oh, that johnny on the spot really helped. I couldn't have driven another mile!

Johnny On The Spot by Refinnej September 2, 2005

johnny on the spot 

a massive hickey on the inside of a girls thigh

Steve left a johnny on the spot that was extremely red

johnny on the spot by curtis martin February 26, 2008

Johnny-on-the-spot

A person who is on hand and ready to perform a service or respond to an emergency; An unusually alert fellow who is capable of decisive action, seizing an opportunity.

When you need help, call me and I will be your Johnny-on-the-spot" "Oooh, thank you, girl!

Johnny-on-the-spot by GJ's April 24, 2011

johnny-on-the-spot

Something, or some person performing an action in precise manner as expected by another party.

Being on time or in the correct place.

Hector, You were hella johnny-on-the-spot with those fries when I got the munchies.

johnny-on-the-spot by Rafi R January 6, 2008