1. To take a perfectly good two part series, and taint it with a third movie, thereby turning it into a mediocre trilogy.
2. To make an unnecessary and/or inferior third installment or version.
Some movie series that have been "Godfathered" include:
-American Pie
-Terminator
-Godfather
See also: EXTREME Godfathering -
The most salient example of Extreme Godfatehering is the disgusting treatment that the Star Wars franchise received when George Lucas birthed those three mutant-bastard-children-he-calls-cinema, Star Wars Episodes 1, 2, and 3.
"Hey, did you hear they are making a hangover three?"
"Aw man really? Are they REALLY Godfathering that franchise too?"