A "New Zealander" - something unstoppable and has every chance of making it home (to NZ) - they always head east.
Breaking out in to the war song "We'll meet again, don't know where, don't know when ... but I know we'll meet again some sunny day" Same circumstance as above.
"Water" (with urgency) when land-based and you are about to get crashed by a wave.
"A Dinosaur" - a HUGE Flathead.