nibble

Short definition from Wiktionary

Verb

1. 1
   To take a small, quick bite, or several of such bites, of (something).
2. 2
   To lightly bite (a person or animal, or part of their body), especially in a loving or playful manner; to nip.
3. 3
   To make (a hole in something) through small bites.
4. 4
   To make (one's way) through or while taking small bites.
5. 5
   Chiefly followed by into or to: to cause (something) to be in a certain state through small bites.
6. 6
   Followed by away, off, etc.: to remove (something) through small bites.
7. 7
   Followed by away, off, etc.: to remove (something) through small bites: To remove (small pieces) from glass, tile, etc., with a tool; also, to remove small pieces from (glass, tile, etc.) with a tool.
8. 8
   To fidget or play with (something), especially with the fingers or hands.
9. 9
   To catch (someone); to nab.
10. 10
    To steal (something); to pilfer.
11. 11
    Chiefly followed by at, away, or on: to take a small, quick bite, or several of such bites; to eat (at frequent intervals) with small, quick bites.
12. 12
    To lightly bite, especially in a loving or playful manner.
13. 13
    Chiefly followed by at: to show slight interest in something, such as a commercial opportunity or a proposal.
14. 14
    Followed by away at: to reduce or use up gradually; to eat.
15. 15
    Followed by at: of a batter: to make an indecisive attempt to bat a ball bowled outside the off stump.
16. 16
    Synonym of tramline (“of a vehicle: to tend to follow the contours of the ground with its wheels”).
17. 17
    To fidget or play, especially with the fingers or hands.
18. 18
    Chiefly followed by at: to make insignificant complaints; to carp, to cavil, to find fault.
19. 19
    To engage in sexual intercourse.

Noun

1. 1
   An act of taking a small, quick bite, or several of such bites, especially with the front teeth; the bite or bites so taken.
2. 2
   A light bite of a person or animal, or part of their body, especially one which is loving or playful; a nip.
3. 3
   An amount of food that is or can be taken into the mouth through a small bite; a small mouthful.
4. 4
   A slight show of interest in something, such as a commercial opportunity or a proposal.
5. 5
   Grass or other vegetation eaten by livestock; forage, pasturage.
6. 6
   A unit of memory equal to half a byte, or chiefly four bits.