Theb is a multipurpose word. It can be used as virtually any part of speech (though the noun form is not very common). Grammatically it is very similar to how "fuck" is used, except theb can also be as a substitution for "reaction" words such as "neat" "cool" or "lol" etc. May also be used as a greeting or exclamation in certain contexts.

Bathroom. Particularly useful with children or animals.

barracks, the place where enlisted military live

The Bruins (NHL Boston team)

Theb isn't anything. It means whatever you want it to mean. It can be a verb, a noun, an adjective. It can mean extreme anger, happiness, sadness. It can be an expletive or an excited announcement. You choose depending on the circumstance.

A phrased used to indicate the disire of two penises instead of just one.

(Not to get confused with the D)

Nickname for the restaurant Arby's