whoopsie wave 

When you wave to someone you know and another person intercepts your wave mistakenly as if you are waving to them, e.g. caught in the crossfire of your wave.

I was waving to Eddy at the show and Phil thought I was waving to him. Awkward... Phil waved back to me as he was caught in a whoopsie wave. It's almost as bad as when Jim invited me to lunch, thinking I was Tony because his phone contacts were screwed up resulting in Jim texting me with an invite.

whoopsie wave by the comand'r April 14, 2014

whoopie wave 

When you intercept a wave from someone else.

Ryan waved
Dave waved back
Angie waved
Dave realized he just whoopie waved

whoopie wave by pandasrbae November 17, 2015