Pseudolectual
Person who in a hurried effort to counter an argument with out having any knowledge of the subject makes a fool of himself/herself.
" All that Debu knows about Rohingyas is from what she reads in the weekly tabloid, yet she will shout her lungs out lecturing Indians to open their doors to them. But once you ask her to tell you the history of Rohingyas her hilarious answers will make you laugh. What a pseudolectual she is "!