be bitten by/have the bug
be bitten by the bug
COMMON If you are bitten by the gardening bug, for example, or are bitten by the acting bug, you become very enthusiastic about gardening or acting, and you start doing it a lot. I've definitely been bitten by the gardening bug, and now I love weeding and digging. Bitten by the travel bug, he set off for a working holiday in Australia. She provides a guide to Britain's antiques markets and a very useful reference list for those seriously bitten by the bug.