Refers to your cock. Your cock has a massive blue vein in it and it chucks man custard when at the climax of arrousal.
by Bigsypowell January 02, 2016
A.K.A: Penis, Knob, Pink pogo stick etc. This term is usually used to describe a large shlong that chucks custard or semen(cum).
by bigboy69 April 13, 2004
"How she wished that she was penetrated by his blue veined custard chucker."
by KHD July 17, 2003
by wallago September 27, 2009
by Darren B Fry October 29, 2003