tit

Short definition from Wiktionary

Noun

1. 1
   A person's breast or nipple.
2. 2
   An animal's teat or udder.
3. 3
   An idiot; a fool.
4. 4
   A police officer; a "tithead".
5. 5
   A light blow or hit (now usually in the phrase tit for tat).
6. 6
   A chickadee; a small passerine bird of the genus Parus or the family Paridae, common in the Northern Hemisphere.
7. 7
   Any of various other small passerine birds.
8. 8
   A small horse; a nag.
9. 9
   A young girl, later especially a minx, hussy.
10. 10
    A morsel; a bit.

Verb

1. 1
   To strike lightly, tap, pat.
2. 2
   To taunt, to reproach.