The sole sperm donor to a woman wishing to get pregnant many times. The babies are conceived through artificial insemination, sometimes nicknamed the turkey baster method.
The mother of the newborn octuplets claims that her babies and the six kids she already has (14 children in all) were all conceived by the master baster, and not different men.
A person who has achieved excellence at keeping things moist.
"Someone tell the Master Baster that the Dip Chicks need more moist."
My ballin-ass personal chef is a Master Baster.
My dumb cunt wife served me dry turkey. Next Thanksgiving I'm hiring a Master Baster--and maybe a dip set, as well.