Okay, here I am again. We had another couple to dinner last night and I noted two nonce-words, one from me and one from a guest.
First - I was talking about a man who had broken up with his long-time girlfriend and describing how he'd told us about it. I said, "And then he said - I can't remember the exact phrase he used, but something assholey."
Another noun + y formation I thought of just now is a term you hear a lot on fashion and home decorating TV shows, "matchy-matchy." ("If we use the plaid for the curtains, we should use something else for the bedspread and then yet another fabric for the chair. We don't want it to be too matchy-matchy.")
Second from last night - I asked the guests, who live fairly nearby, if they'd walked or driven to our house. I said, "When I saw you coming up the front walk, you were walking with so much verve." The husband of the other couple replied, "If we'd walked all the way from our house, we would have been pretty verveless by the time we got here, believe me."