Ungrateful Llama Share definition Flag A sexual act where a man ejaculates into their lover's mouth, and has it spit back upon them. It was good, until s/he pulled an ungrateful llama on me. Ungrateful Llama by Cal Aggie Marching Band-Uh! January 3, 2008 0 0 Get merch Get the Ungrateful Llama mug. Buy Now — $32.95 See more merch