when is something is very good. its a combination of the mafioso saying "Badabing Badabang; the whole shabang" and Mercedes-Benz. One is a saying of something great in mafia speak and the Benz is is just the best car out there. Therefore: BADABENZ!!!!!
Badaeish is play on words to the phonetic attributes of "mad nice."
It can also be spelled as "Badæish" and is used in the same context as whenever you would say something is "mad nice."
Kevin: Hey, did you hear? Eli proposed to Luna last night!"
Andy: That's badaeish!
The best last name there is!!! It sounds a lot like "Bottle O' Whiskey" which makes it even more awesome! Especially since it's a polish name, it ROCKS!!!
only the coolest most fun and spontaneous people have the last name.
although it does come with some curses, such as the food curse which causes you to have HORRIBLE stomach pains and feel like dying after eating certain foods, but that's ok because you still have the name ;p
-"no we don't need anymore help"
-"well, it's a Badalewski!"
-"WHY DIDN'T YOU SAY SO?!? OF COURSE A BADALEWSKI CAN HELP!!! THEY'RE AWESOME!!"
-"Mom I have to come home from school, I have the Badalewski curse!!!"
-"Ok, I'll sign you out. Be sure to be near a bathroom"