fi•na•glefɪˈneɪ gəl(v.)-gled, -gling.

1. (v.t.)to trick, swindle, or cheat (a person) (often fol. by out of):

   He finagled the backers out of a fortune.

2. to get or achieve (something) by guile, trickery, or manipulation:

   to finagle an invitation.

3. (v.i.)to practice deception or fraud; scheme.

Origin of finagle:

1925–30, Amer.; alter. of dial. (W, SW England) fainaigue to shirk, renege

fi•na′gler(n.)