Newly Slim Zach Galifianakis Trades Excuses With Jimmy Fallon! Plus, Does He Reveal The Secret Of His Weight Loss?

Zach Galifianakis has lost a lot of weight!
[ Photos: Zach Galifianakis Lost So Much Weight You’ll Hardly Recognize Him! ]
But does that mean he’s any less funny? Not on your life! In fact, he’s right back to his old deadpan self!
Ch-ch-check out the video (above) to see him and Jimmy Fallon one-up each other with the most amazing excuses we’ve ever heard!
Speaking of excuses, he totally avoids dishing on his weight loss secret! But you can hear his joke answer and more in his Tonight Show interview (below)!