blow (one's) own trumpet

blow (one's) own trumpet

To boast or brag about one's own abilities, skills, success, achievements, etc. Primarily heard in UK. I don't mean to blow my own trumpet, but this pasta sauce I made is quite delicious! I can't stand being around Marcus ever since his company became such a massive success. The guy just can't stop blowing his own trumpet!
See also: blow, own, trumpet