1) one or many persons of a filthbag ne'er-do-well
nature, who crashes a party of one or more already in progress; the un-solicit sitting down at the table sponging any sort of goods and services - to money for crack
. 2) one passing by another's personal space gawking more than once, eavesdropping and or mocking from afar - but still within listening range".
It has become comical how Laurie and Walt can't ever socialize within the general populace, without some dirty Cadgstead bum-rushing them.