A person who criticizes, second-guesses, or offers advice about decisions (originally about sporting plays) from the comfort of hindsight and without direct involvement or practical experience.
Someone who assesses or judges others' actions or professional decisions while not participating in the activity themselves.
Examples:
EN: You are a classic armchair quarterback.
ID: Kau memang orang yang tak memikirkan orang lain.
EN: I'm no going to try and armchair quarterback Dr. (Saqib) Shahab at this stage in the game.
TE: టీమ్లో అతనికి పోటీగా ఉన్న ఏ స్పిన్నర్ (కుల్దీప్, చాహల్) ఈ తరహాలో బ్యాటింగ్లో చేయలేరు.
EN: I'm not interested in being his armchair quarterback, and I certainly don't want to be his shrink, okay?
ES: No me interesa dar mis opiniones ni quiero ser su psiquiatra, ¿sí?
EN: - I apologize, Mrs. Beckett. But you're sitting in that chair playing armchair quarterback saying that my client could've prevented this tragedy.
ES: - Discúlpeme, Sra. Beckett pero usted está ahí sentada hablando como si fuera experta diciendo que mi clienta pudo evitar esta tragedia.
EN: It's easy to armchair quarterback.
ES: Es fácil opinar desde tu sofá.
EN: But, yes, we're playing "armchair quarterback" here.
HI: खैर, हां, वे यहां "लोकतांत्रिक" प्रदर्शन कर रहे हैं।