noun phrase. The first, and often only, symptom of an acronym aneurysm.
Related term: mmmf face.
Real citation: "Oyyy.... somehow I doubt that... Especially with the look from Olivia's WTFOMGTMDTLAARGBBQ?! face when Vic and Ronnie were marching into her office. If they were in fact sleeping together, I would hit Shawn Ryan because that would be so soapy."
(HoneyBee, Nov. 20, 2008, "The Shield," Television Without Pity, http://forums.televisionwithoutpity.com/index.php?s=&showtopic=1569855&view=findpost&p=11064148)
Made-up citation: "Whenever I leave, my dog gives me his best WTFOMGTMDTLAARGBBQ?! face. Then he pees on my cornflakes."