From Latin "lingua" (tongue) and "Cunni" (cunts cunnus being the singular version), a cunnilingual is someone who is proficient at attaching his tongue to a pussy.
kuhn-l-ing-gwuhl - (1) adjective - a man who accepts oral stimulation of his penis by women, and who returns the favor by licking vagina.
(1) advice - Being cunnilingual greatly increases your chances of getting a blow job (2) contextual - "I'm not into the 69 thing, baby; I'm not cunnilingual".
Ulzzang true definition is "best & "face" = best face in korean. They are basically people with above average looks, sometimes with the use of photoshop and haduri who post their pics online, some becoming internet celebrities.
"Hey, see that chick over there? She's pretty enough to be an ulzzang. :D"