An acronym standing for "Asian Invasion", generally used in the presence of orientals who are trying to play sports though fail miserably.
Speaker 1: Dude this ski mountain is packed with snowplowing Asians.
(then as they get on the lift next to an oriental man)
Speaker 2: No kidding, its the A.I.
(this acronym is generally used in the presence of an Asian party since the meaning is not widely known, which makes it much funnier)