My attempt at comedy

I was running something through my head the other day and found myself saying "guess-timate". I think I associate that word with sleavy middle management type people, who use it in the context of "guesstimating next quarter's budget" or something like that. Anyway, it just has bad connotations for me. And it started me thinking, when do we ever just combine words and make a new one, as if that's ok? The only two examples I think are "brunch" (best meal ever) and "metrosexual". Anything else is off limits, in my book. And that's my attempt at a stand-up comedy routine. Thank you.