mucho thanko exclamation 1noun 1 exclamation1 •(slang, humorous) Many thanks.Does anyone know how to get the wine back to the casino? Also, how do you get the pills out of the bar window? Mucho thanko... — 1992 noun[plural only]1 •(slang, humorous) Many thanks.Mucho thanko to: David King / Gary Heffelfinger / Randell Jessup (Commodore) / Perry Kivolowitz (ASDG) / For there^([sic]) response to my questions regarding FFS behaviour with flaky media. — 1989