armchair pilots
Someone who gives expert advice and believes his opinion is always the best, despite never have flown or been in an aircraft before, except for his own aircraft on Microsoft Flight Simulator
1. "Hey did you see Dermy?"
2. "Yes I did! He thinks and believes he has the knowledge of a real pilot"
1. "Of course he does! He's an armchair pilot!"
2. "I hate armchair pilots!"