adjective - relating to consuming excessive amounts of room service, shelling out is essentially the equivalent of crabbing or lobstering in the context of a chinese buffet. shelling out is particularly embarrassing if exectued at the hotel poolside
"shall i call room service again or are you about to shell out?"
verb - relating to chinese buffets, the act of throwing up after eating the (often low quality) dessert. chunder usually looks like "squid-like" due to the disproportionately high ratios of jelly and ice cream offered.
"now that you haven't crabbed, we can hit the dessert car, but u better not squid again"