for two pins I'd

for two pins

At the slightest provocation; for the smallest reason. Primarily heard in UK. I would cancel this party for two pins, but my husband has been looking forward to it all week. She'll drop this class for two pins, so you better convince her she loves it.
See also: pin, two
Farlex Dictionary of Idioms.

for two pins

mainly BRITISH, OLD-FASHIONED
If you say that for two pins you would do something, you mean that you would like to do it if you were able to, but you are not. His eyelids were heavy and the room was hot. For two pins he'd have fallen asleep there and then.
See also: pin, two
Collins COBUILD Idioms Dictionary, 3rd ed.

for two pins I'd, she'd, etc. —

used to indicate that you are very tempted to do something, especially out of annoyance.
1997 Spectator Certainly it is a fierce dog…What is more, for two pins it would bite us again.
See also: pin, two
Farlex Partner Idioms Dictionary

for two ˈpins

(old-fashioned, British English) used to say that you would like to do something, even though you know that it would not be sensible: I spend so much money on this car. For two pins I’d sell it.
See also: pin, two
Farlex Partner Idioms Dictionary
See also:
  • for two pins
  • for two pins, (one) would (do something)
  • (one) would (do something) for two pins
  • not give (a) tuppence
  • phonier than a three-dollar bill
  • ninebob
  • bob
  • dill
  • (as) bent as a nine-bob note
  • (as) queer as a nine-bob note