BLOW (OR TOOT) ONE'S OWN HORN N. AMER.
Meaning of BLOW (OR TOOT) ONE'S OWN HORN N. AMER. in English
blow ( or toot) one's own horn N. Amer.
informal
boast about oneself or one's achievements.
→ horn
Concise Oxford English vocab.
Сжатый оксфордский словарь английского языка.
2004