In Australia, clams are often referred to as "pippies." This term is commonly used for small, edible bivalve mollusks found in sandy coastal areas. Other names like "cockles" and "mussels" may also be used depending on the specific type of shellfish. Overall, "pippies" is the most distinctive term for clams in Australian vernacular.
clams
You call people living in Australia, Australians.
Australians call them "lifts", but the word "elevators" is not unknown.
Watermelon, Australians just have an accent.
i presume you mean do Australians call us poms? if so yes
Kakka
Clams are included in phylum Mollusca .
On their shell phones!
it is a veranda
KIDS
We call them thongs, and yes, many Australians wear them.
If it is an outdoors "grill", it is probably what Australians call a Barbeque. With increasing frequency, it is sometime known by its brand name as a Webber.