Define Technicolour Yawn Meaning

Technicolour Yawn
the act of vomiting, or vomit

I did a technicolour yawn after that party on Saturday.
By Scarlet
Technicolour Yawn
when you yawn in technicolour.
(but it's much more messy too)

Person 1: I'm so tired! (does a technicolour yawn)
(notices the mess on the floor)
I never knew that's what "technicolour yawn" means!
By Doria