Literally: Thank You
This how Red Necks say thank you in Spanish. It is a phonetic transliteration of "Grassy Ass." The Red Neck attempt at pronouncing Gracias.
Because the attempt at prouncing gracias is usually an honest effort at
inclusivity Lawn Burro is way of gently referring to people who are
kind hearted but don't quite get it.
Sometimes replaces De Nada.
Among a Spanish Speaker and
Souther non-Spanish Speaker who are
friendly:
non-Spanish Speaker, "
Grassy Ass"
Spanish Speaker in reply, "Lawn Burro"