The phrase appears to be a play on words or a slight misspelling, likely referring to one of two things: the famous inspirational quote by Ramón María del Valle-Inclán , or the linguistic meme that Galician (the language) is free of charge (unlike Spanish, which has phonetic "costs").
It is for the tired, the burnt-out, and the dreamers who look at a map of Spain and head left, past Portugal, all the way to the edge. galician gotta free
English-speaking listeners (or those looking for a laugh) began transcribing the fast-paced Spanish lyrics phonetically. The phrase appears to be a play on