1. To clean with one's bill, of birds; SYN. plume.
2. To dress or groom with elaborate care; SYN. primp, plume, dress.
3. To pride or congratulate (oneself) for an achievement; SYN. pride, congratulate.
4. To make oneself sleek
5. Gloat, swell

(dialect chiefly British) Pin, brooch