when someone goes for a big better deal over anything
may be a girl dumping a guy for the big better deal and this also ties in nicely with the acronym of BIG BLACK DICK - of course this has in a lot of ways supplanted the older meaning of big better deal and may have been purposely done to associate the big better deal with big black dick
A killing insult in Dwarvish, madepopular by Terry Pratchett's Discworld. Can be used as a term of endearment. Compares the target to some sort of lawn ornament