Another Simpsons word lands in a dictionary Yikes! Yeeps! Ugh! Whoo! Ack! Guh! Mmm ... Oooh ... Whoa ... Bleah. Hmm? Aaiiieee! Interjections don't get the respect of nouns and verbs, but who needs respect when you can communicate so efficiently all by your lonesome? Regardless, a lowly interjection..