literally pronounced as "one asterisk";
meaning "one ass to risk"
--risking your own ass to help others
used mostly as a sign-off, the way some people say "one love"
A term originally created by a sergeant with the Los Angeles Police Department SWAT Team. Designed as a reminder that in fact you only have "one ass to risk"(1 as-te-risk), so you'd better be careful.
Don't get yourself shot tonight, you only have 1* and a whole life ahead of you.