clap last 

Coming in dead last in a swim race, i.e you finish so much later than everyone else, it's embarrassing. the people who are clapping are just glad you managed to finish so the meet can continue. while they clap for you, you must drag your ass out of the water (if you can) or someone else will haul you out. This typically occurs during the 500 free.

yo dawg i ate a bagel w/creamcheese i can feel the lactic acid building in my muscles, i'm totally coming in clap last

clap last by rinsten December 19, 2011

Last-clap contest 

When you're at a performance or assembly and the applaud is just ending, this is the contest when two people both try to get the last clap. Usually lasts about 20 seconds before both people give up.

Cathy: I loved how during the assembly today, there was a last-clap contest between Jeff and Matt.

Last-clap contest by night0wl94 May 14, 2009