What is Splash And Dash?
1.
Having a quick wee!
The term originated in Formula 1 and or NASCAR where a car comes in for a minor fix - new tyres etc and takes on a small amount of fuel while this work is being done
Dave was in a hurry so he nipped into the loo for a quick splash and dash.
See
2.
The act of taking a hot cup of coffee, throwing its contents in the face of an unsuspecting individual, and then running away. Useful for both purposes of revenge and comedy.
Mark: That twat cheated on you?! What did you say?
Chris: Nothing really. I was really calm about it. We just went to Starbucks, got some coffee, and just as she was sitting down, I gave her the ol' splash and dash!
Mark: Well played sir.
Chris: Wanna get some Chipotle?
Mark: Certainly.
See