Dweeb and Has-been

Dweeb noun - An insignificant student who is ridiculed as being affected or boringly studious.

Has-been and dweeb are semantically related. In some cases you can use "Has-been" instead a noun "Dweeb".

Has-been noun - One that has passed the peak of effectiveness or popularity.

Dweeb and has-been are semantically related. Sometimes you can use "Dweeb" instead a noun phrase "Has-been".