mummy-daddy

A phrase meaning one acts grown up, could mean boring, or like a goody-two shoes. It can be used if an occasion is dull or uninteresting. A phrase mainly for children or teenagers
"Stop being such a mummy-daddy"
" This party is so mummy-daddy"
by Savannah Fernandes May 03, 2008
mugGet the mummy-daddymug.

Sadpuss

A person who is anti social or generally lame and sad. They may sit at home on New Year's and mope in their own sadness even if they have been invited out
"Merwyn is such a sadpuss sitting at home on New Year's"

"FINE then be a New Year's sadpuss like Merwyn"
by Savannah Fernandes January 13, 2009
mugGet the Sadpussmug.