Grandma 's Boy has an approval rating of 16 % from 63 critics and an average rating 0f 3.55/10 .
Though the film was not successful in theaters , it managed to become a success on the home video market , grossing $ 31,990,186 in DVD sales. The film received generally negative reviews from critics , and mostly positive reviews from audiences .
Grandma's Boy -LRB-2006 film-RRB-