Today's word is batpack. This is of course a near-homonym, and in normal Australian speech we often pronounce consonants indistinctly, so that many words sound the same. The next time you refer to a backpack in normal speech, say batpack. See if anyone notices.
Of course, in this world of rapidly-growing vocabulary choice, batpack is a word in its own right, too. BATPACK Pty Ltd recharges battery packs, of course. "Rip Curl's Bat Pack Pants are warm, snugly, and super comfy." And in baseball, the bat pack is, naturally, a pack for holding baseball bats.
Next word: digitalise.