The competitive edge given to any athlete (although most frequently a ski racer) after having sex either the same day or the night before a competition.
When a woman or girl wears a racer-back or t-back tank top over a regular bra.
This results in double strappage and the bra straps are clearly visible going straight up the back while the tank top has arched straps.
background:
Racer: sailboat racing competitor (in this context, male)
to be a bonifide racer, must be a skipper.
(a fully-fledged male sailor who is a crew is slightly embarrassing)
Racer Chaser:
1. a girl (or guy) who is attracted to these sailing boys
2. L & J when drunk
"Oh man L did u see the abs on that one? He must hike out allllll the time"
"No J, but I did see the one with the sexy lifejacket tan! i just love it when they have that rectangle of blindingly white skin on their back and chest!"