Something nausea inducing, especially a rollercoaster famous for making people throw up.
"I just rode Vortex at King's Island - What a chuckbucket!"
by SaraBellum1976 August 21, 2003
A bucket that's used to vomit into.
Oh man, I'm gonna be sick, someone get me the chuck bucket quick.
by Beavis II February 28, 2009