I was surprised and disappointed how much I disliked Hot Rod (the first twenty minutes thereof, anyway) because some very talented people were involved. Writer Pam Brady has written several classic episodes of South Park, and director Akiva Schaffer was largely responsible for the celebrated "D**k in a Box" and "Lazy Sunday" digital shorts on SNL (a fact trumpeted on the DVD packaging). Maybe he should have stuck to films less than six minutes in length.
Look, I can only offer my opinion. You might be every bit as repulsed by some of the movies I find funny. (I have Hudson Hawk on DVD, for crying out loud.) Hot Rod seems to have found something of a cult following during its short run in theaters this past summer, and if you enjoyed it, more power to you. But leave me out of it.