VULGARITY is the effort of a FEEBLE MIND trying to express itself forcibly.

Notes:
Main Entry:
vul·gar·i·ty
Pronunciation:
\ˌvəl-ˈga-rə-tē\
Function:
noun
Inflected Form(s):
plural vul·gar·i·ties
1 : something vulgar
2 : the quality or state of being vulgar

Note adapted from Merriam-Webster Online Dictionary