A large event focused on, created by or hosted by President Barack Obama.
"Yeah, there's a huge Obamaffair at the Ritz tonight."
ayon kay abdb707 ika-17 ng Hunyo, 2009
When Barack Obama has a sexual relationship with someone other than his wife.
Did you hear about the Obamaffair with the teenage intern?
ayon kay psedge ika-27 ng Pebrero, 2008