white noser
A person who seeks favour with their peers or superiors by supplying drugs to senior management. Similar to brown-nosing, but with class A drugs. It's especially effective during times of recession, as it also leaves the boss susceptible to blackmail at a later date.
His job is safe, he's a white noser. He hasn't showed up to work today, but he's fine - he was white-nosing the boss last night again.