... For he will be DEAD!
Cuz the coach is gonna BENCH him!
what is the -aŭ ending for?
A list of words taking -aŭ and an explanation on its usage can be found here: http://en.wiktionary.org/wiki/-a%C5%AD
Many adverbs happen to end in -aŭ but it is not an affix and does not necessarily have any meaning.
Toimorrow? Tha''s what you had as the right answer.