The final person on a team to flip in any given round of flip cup. The anchor is often a clutch position where the player must make up for the team's slack. Other times the anchor has enough time to show off with a flip under the leg or behind the back, or the always impressive one and a half.
We were about to lose the match, but Flynn was anchor and made a clutch one-flip for the game winner.
Brett was being a dick as anchor and decided to flip behind the back since we were so far ahead.