Servir (en. Serve)
/seɾ'βiɾ/
Slang Meanings
To be useful for something in a colloquial context.
That car no longer serves, it's better to buy another.
Ese coche ya no sirve, mejor compra otro.
To use someone for a more personal purpose.
It doesn't do me any good to have friends who only seek me out for personal gain.
No me sirve tener amigos que solo me buscan por interés.