Meameamealokkapoowa oompa

The meameamealokkapoowa oompa is equal to $$\{LLL \ldots A \ldots LLL,10\}_{10,10}$$ in BEAF, where A is a meameamealokkapoowa array of L's.

=== It's notable for being the largest number Jonathan Bowers has yet defined and is probably among some of the largest numbers ever defined. The only number that would likely surpass it would be rayo's number. ===