Newsmambo

Akwukwo [12], chekere, pepper
Fake check.
Bill
The amount a scammer plans to extract from his victim.
Ego, pepper, lalas, show
Money
Fall mugu (to)
To be fooled, to become victim of advance fee fraud.
Flash of account
Cause the victim's bank account to temporarily show a large credit. This is intended to induce the victim to believe in the deal and send money. The credit gets reversed by the bank when it is discovered that the original check or electronic transfer was fraudulent.
Format
The scheme or script of an advance fee fraud, e.g., the late dictator format (the scammer pretends to be a relative of a dictator, e.g. Maryam Abacha, "Wife" of Sani Abacha), the next of kin format, the lottery format.
Guyman, guy
Scammer engaged in advance fee fraud.
Maga, mugu, mugun, mahi, magha [13], mahee, mayi, mayee
Victim of advance fee fraud. "Mugu" in particular is often used as an insult by scam-baiters.
Modalities
commonly used term for methods of funds transfer; often considered a shibboleth for scam messages due to its infrequency in native Anglophone usage.
May reflect roots in an older French version of the scam; modalités in French just means ways or methods.
Oga
Boss
Owner of the job, Catcher
Scammer who makes the first contact with a victim and then passes him on to another scammer who finishes the job. The latter shares the spoil with the former.
Runs
An (illegal) activity.
Yahoo millionaires [14], yahoo boys [15]
Scammers
Yahoo yahoo
The act of scamming, especially through the use of a Yahoo! mail address.