In gaming, playing a game that you already have experience with from a new account, often making very quick progression and intimidating opponents (not to be confused with hacking)

Purchasing small amounts of pseudoephedrine in several stores or by groups of people, with the purpose of using it to make metamphetamine.

Buying up the maximum allowed quantities of pseudoephedrine-based medicines at one location after another for use in the production of crystal meth.

Still one of the best cartoons of all time.

Verb:
In forum usage, the act of a person using another login name to try to fool the forum populace that he/she is a different person. Usually occurs when the said person was recently blacklisted under a previous name, and is attempting to cover up or hide his/her new identity.

high ranked csgo players that rekZ small knoob in silver

Dividing a large amount of money into smaller sums to make money laundering easier.
(No joke man, I´ve been in the banking business for two years.)