Porcupine and Show-off

Porcupine noun - Relatively large rodents with sharp erectile bristles mingled with the fur.

Show-off and porcupine are semantically related. In some cases you can use "Show-off" instead a noun "Porcupine".

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

Porcupine and show-off are semantically related. Sometimes you can use "Porcupine" instead a noun phrase "Show-off".