Question:
The plural form of a stag, though not literally. It has a sinking tune to it.

Answer:
Yellow Submarine

Explanation:
The plural form of a stag, - Remember the item you can purchase in Saturn Valley? The Stag Beetle. The plural form would be stag beetles.

though not literally. - It's not really a stag beetle, but something else with a similar name.

It has a sinking tune to it. - Sinking? Tune? Stag Beetles?....Tune.... like a song... Stag Beetles... Stag... Beetles.. The Beatles!!!!! Hmmm... Sinking... Hey! They made an album called Yellow Submarine! HOLY MOLEY PEPPERONI!! Theres a yellow submarine in EarthBound!!! HUZZAH!!!! (Or something like that ;-)

SPAZTASTIC!!!!!!!! Great job everyone!! And ANTHADD!!!! YEAH!!!! You broke into 10!!!!! You are the first one to get the next badge! Expect to have it soon! And congrats to Zepheros, cause you'll be getting your first badge soon! Thanks everybody, and I'm sorry I didn't update late at night like I usually do. My mom was on the computer, and my sleep deprivation finally caught up with me. Oh well, it's still on the right day! NO GO HAVE FUN DANG IT!!!