...At least they could say something like, "'I fish on my side of the lake...' is 'lemporabasip...'".

Hey, you casting aspersions on my orthography? (What's the emoticon for mock outrage?)
"lemporabasip" is very close to "improbable sp."

For an undocumented, maybe even grudging, refutation of the You-fish-on-your-side theory, see http://users.net1plus.com/websterpd/webster_lake.htm
at the end of the last paragraph...