8745 is a D&T teacher in La Salle College(LSC) in Kowloon City District of Hong Kong.His English Level is so poor that he called a smart phone 'a hand phone'.His is usually being called 'small NG' in LSC.45 is similar to the Chinese pronunciation of small NG.

When you think up something brilliantly righteous while baked.

8745 is a derogatory, slang term used by students in La Salle College in Hong Kong, referring to a teacher with surname Ng.

The term 8745 is usually used as cursing the teacher, or as a replacement of retarded.

8745 refers to a Design and Technology teacher at La Salle College in Hong Kong. This term is derogatory.
This term is also used as an expression for stupidity.

#8745 means a teacher in La Salle College who teaches D&T and is called smallng. 8745 means exactly the same as stupidity or idiocy. He always asks us what 8745 means. He even broke his leg while chasing a bus.