Assuming the position and movement of a chicken (bobbing your head, flapping your arms at the elbow and lifting each leg up alternatively) whilst throwing up. A different version to the Chunder Dragon.
Nigel: Dude, I'm about to vomit!
Bernard: Don't forget to do the Chunder Dragon.
Nigel: Nah, I prefer to do the Chunder Chicken. It's funnier.
A term popularised in the UK around 2010. Chunder bay is the place you go to when you have had one too many to drink and feel the call of the chunder. One of the many variations of terms used with the word 'Chunder' in it
?Person 1: you getting drunk tonight
Person 2: yep gonna get off nut
Person 3: shall see u in chunderbay