Say it’s snot so.

A reputed crime-family captain, with the nom-de-mob “Big Nose,” dug in for some nasal gabagool during an appearance in Brooklyn federal court yesterday — picking and pulling the entire time the judge instructed the jury on deliberations.

Then he disgustingly licked every finger.

Anthony Antico, 74, who is on trial on for a variety of racketeering charges, spent a good 10 minutes probing his proboscis.

Relatives at the trial swear that the alleged mobster — who has health problems — is so stressed that it’s making his nose bleed.