This is "St. Nicholas Refusing His Mother’s Milk,” by an unknown artist. Apparently St. Nicholas' mother has vases for breasts. Either that, or she's pointing a flesh-colored water balloon at her son.
St. Nicholas himself appears to have been cross-bred with a caterpillar.
And this is the conversation they are having, apparently having been locked in a battle of wills for about 3 days straight.
Mother: DRINK IT. DRINK THE MILK. RIGHT NOW.
St Nicholas: NOOOOOOO. STOP POINTING THAT THING AT ME.
Mother: I'VE BEEN TAKING LESSONS FROM MARY. YOU CANNOT ESCAPE MY LASER LACTATION DEVICE.