What is a gay icing expert?

What is icing expert?

A slang term, in the gay community, for someone who is good at, and who enjoys, sucking another's male's penis. One who has a preference for oral sex.

Definition

Icing is in reference to the semen, that resembles the creamy texture of icing, such as found on cakes. Usually used in reference to another male, who enjoys bringing one to ejaculation, not just to a state of erection.