Definition of "plume"
plume1
/ˈpluːm/
noun
plural plumes
plume2
/ˈpluːm/
verb
third-person singular simple present plumes, present participle pluming, simple past and past participle plumed
(transitive, reflexive, by extension) To congratulate (oneself) proudly, especially concerning something unimportant or when taking credit for another person's effort; to self-congratulate.