Sarcasm
From OAPedia.com
Remarks that mean the opposite of what they seem to say and are intended to mock or deride.
Opie in particular has been known to use this form of verbal communication from time to time, often being misinterpretted by the O&A Army. Such classic miscommunications include the infamous "$50,000 is not a lot of money" debacle.
It should also be noted that sarcasm is particularly difficult to pick up on an internet message board (such as Wackbag), which causes an occasional rift between fans.
Ricky, a former intern at the Opie and Anthony show, was seemingly born without a sarcasm detector. As a result of this, the boys had him write and present a report on the subject.