Dimwitticism

To be perfectly honest, when you're submitting entries to a dictionary of so-called dimwitticisms -- expressions that are neither fresh nor witty -- it helps to be as unoriginal as possible.

Source: wiktionary

And it's true: Where Griffin goes, trouble follows. She's not likely to run out of material in this lifetime, as the bulk of her act is breathlessly dishing about the never-ending numskullery and dimwitticisms of Hollywood's red carpet clique.

Source: wiktionary

Ms. Arianda's nasal squawk — think of the sound you hear if you squeeze a rubber duck — lends a bright comic pop to Billie's stream of dim-witticisms.

Source: wiktionary