Adj. : Patheisad is indeed a combination of the words "pathetic" and "sad" and should only be used in the most comical of situations, usually to describe how lame someone is.
Frank: Did you see Pete try to pick up that chick with that shitty ass line?
Dave: Yea, that shit is pathetisad.
2. Cherie is so effing pathetical she barely found enough loose change to buy a bus ticket! i heard she even had to pay with some of those old copper coins.... ewwwy!!!