Cutup and Show-off

Show-off and cutup are semantically related in joker topic. In some cases you can use "Show-off" instead a noun "Cutup", when it comes to topics like person who is wildly funny, person who is very funny.

Show-off noun - Someone who deliberately behaves in such a way as to attract attention.

Cutup and show-off are semantically related in person who is wildly funny topic. Sometimes you can use "Cutup" instead a noun phrase "Show-off", if it concerns topics such as person who is very funny.