Ridiculously good-looking or cool, at any rate
"That young man was quite dashing!"
by julian fernandez May 25, 2005
The phase in a relationship when you are not just "friends with benefits", but not dating yet. The space between girl or boy and friend is filled with a "dash" (i.e. girl-friend, boy-friend). It is essentially when you are fucking and confused, and are not ready for commitment.

Dating... not
Also
Shagging
Happily.
Essentially
Dashed
My fuck buddy Tyler and I have feelings for each other, so you could say we're dashed.

We're not dating but we like each other... you know what I would call that... DASHED!
by TheHomie$$$ March 2, 2021
Another slang term for the illegal narcotic heroin.
"Shooting that dash-dash $#it in his bloodstream."
by The Indomitable Ghostman October 18, 2020
The other definition is false. On the dash does refer to the dashboard of a car, specifically the gauge panel. The number refers to the highest speed on the speedometer.
The Boss - Rick Ross
I've got a Chevy with a 454 in the hood and it's got 125 on the dash.
(Most classic muscle cars displayed a top speed of 125 on the speedometer.)

T.I. - Big Things Poppin'
Think I won’t pull up in something with 200 on the dash.
(High-end supercars, particularly of Italian origin, commonly have the top speed of 200 on the speedometer.)
by suburban white boy June 28, 2008
adj. Dashing is like handsome, only faster.
That runner is so good looking; hell i would even say he is dashing!
by MastaFoo69 March 27, 2009
The act of running leaning forward with your arms straight behind your back
I had to Dash Dash to catch up to my friend
by Some guy who does stuff September 6, 2016
"I said… Get your feet off the dash."
by Freybjorg April 17, 2020