Reusable gel packs. These are cold therapy packs which contain a form of gel and are kept in the freezer until required. They are reusable and in many cases can also be heated either in very hot water or a microwave to offer warm therapy instead.
A clown car is a prop in a circus clown routine. A common example of such a routine involves an implausibly large number of clowns emerging from a very small car, to humorous effect.
Definition of clown for English Language Learners. : 1  someone who performs in a circus, who wears funny clothes and makeup, and who tries to make people laugh. : 2  someone who often does funny things to make people laugh. : 3  a rude or stupid person.