In the raucous and woefully wretched Dirty Grandpa director Dan Mazer's lazy and lethargic laugher gives a whole new meaning to the term "gag comedy" with the emphasis on the word gag. One might want to upchuck at this mindless ragtag romp that desperately tries too hard to reel in the obnoxious chuckles. Undoubtedly toothless, unimaginative, and aimlessly insipid the degenerative Dirty Grandpa has all the cheeky charm and hilarity as a waxy floor in an arthritic nursing home patient's dim lit room.

Naturally, the questionable punchline to this foolish and crass joke-of-a-movie is wh... read the rest.