Swimming Country

Alright, listen up, buttercup. This joke is playing on the words "Finland" and "fin land". Finland sounds like "fin land," and, of course, fishes have fins. Now, since you clearly have the brain of a peanut, here's a fun fact: Finland is known as the "Land of a Thousand Lakes"... which makes this joke even more ironic because it's a land full of water. You probably only swim in the shallow end, don't you?