Wellbutrin (bupropion) is a dopamine and norepinephrine reputable inhibitor. Bupropion is actually a substituted cathinones and is a mild stimulant. However, saying bupropion is recreational is a bit of a stretch IMO, and the ammounts needed to probably obtain any euphoric effects would almost certainly cause a seizure, as Wellbutrin lowers the seizure threshold (in fact, many people have had seizures from therapeutic dosages alone.)
In short, you might achieve some mild stimulation, perhaps some euphoria, but those effects will fade almost immediately, and upping your dosage is really asking for trouble. Make sure you also do not mix bupropion with other substances that lower your seizure threshold (tramadol, alchohol, certain SSRI's etc..)too. All in all though, don't abuse your wellbutrin, it's not worth the risk.