fluff one's feathers

To show off.

Japanese Meaning

見せびらかす / 誇示する / 自慢する

After landing the promotion, it's hard not to fluff one's feathers a little at the office holiday party.

昇進を得た後、会社の忘年会で少し見栄を張らずにはいられない。

Sense（1）

To show off.

fluffs one's feathers

（ present singular third-person ）

fluffing one's feathers

（ participle present ）

fluffed one's feathers

（ participle past ）

fluffed one's feathers

（ past ）