A small, showy trinket. This could be jewellery, etc. Most famously used by Willie Nelson in the song Highwayman. "Many 'a young maid lost her baubles to my trade".
A "Baumer day" includes staying home instead of going to school for a list of various reasons. Including but not limited to: Late hockey game, lost a hockey game, too much work to do, had to work the night before, or even just wanted to take a day off.
Griffen: hey guys have you seen Chris?
Kevin: Nah i think hes taking a Baumer day
Being baumed is having been fucked between the inner thighs instead of in the pussy. The girls lays on her side and lubes up her thighs and the guy proceeds to fuck them.
He didn't fuck me last nightcause of my crabs, so he baumed me instead