When your girlfriend (or boyfriend, god bless his soul) eats a large amount of corn the day previous to partaking in anal intercourse. This results in your genitalia becoming, effectively, corn on the cob.
by Boskette October 18, 2010
When a B.B.D (Big Black Dick) is too big for a girl suck so she has to approach the penis from the side, moving up and down the shaft, like she's eating a "corn on the cob."
by Euph0rium March 27, 2015