Snape x Dumbledore. A relationship between an old, long-haired, purple-robe-clad closet-gay headmaster and his forever-alone ex-student who becomes a teacher.

Dumbledore: "What will you give me in exchange Severus...?"

Snape: "Anything..."

Short for ultimate bias. Typically used by fangirls and fanboys to describe their favourite celebrity amongst the many that they are fans of.