bun

Short definition from Wiktionary

Noun

1. 1
   Senses referring to baked goods: A small bread roll that is sweetened or spiced.
2. 2
   Senses referring to baked goods: A bread roll that is served with a savoury filling such as a hamburger or hot dog.
3. 3
   Senses referring to baked goods: Any bread roll.
4. 4
   Senses referring to baked goods: A cupcake.
5. 5
   A roll of hair worn at the back of the head.
6. 6
   A drunken spree.
7. 7
   A newbie.
8. 8
   A young girl or woman.
9. 9
   A buttock.
10. 10
    The vagina.
11. 11
    Clipping of bunny (“rabbit”).
12. 12
    A bunny: a rabbit.
13. 13
    A squirrel.
14. 14
    The scut or tail of a hare.
15. 15
    A dry stalk.
16. 16
    marijuana cigarette, joint
17. 17
    A Korean unit of length equivalent to about 0.3 cm.
18. 18
    Initialism of blood urea nitrogen.

Verb

1. 1
   To form (the hair) into a bun.
2. 2
   To smoke cannabis.
3. 3
   To shoot.
4. 4
   To forget.

Proper noun

1. 1
   A surname from Khmer.