Which preposition to use with confab

with Occurrences 13%

We had a long confab with the gink.

in Occurrences 2%

They confabbed in the centre of the clearing, and then hailed the table in the strange tongue.

before Occurrences 1%

Dorothy and I walked side by side, like two champions in amiable confab before a friendly battle, intimately aloof from the gaping crowd which follows on the flanks of all true greatness.

on Occurrences 1%

I met her in the museum after our confab on Wednesday, and told her what you recommended: that I must have the child, and that she must go.

under Occurrences 1%

I admire his nerve in holding the confab under our very noses.

Which preposition to use with  confab