A car that purposely slows down (especially in the fast lane) to impede you from passing them either on the left or right. Cars often use this maneuver while "passing" tractor trailers and moving the same speed or slightly faster than the trailer to slight the driver (s) behind them.
Yeah I was trying to pass and came up behind this car and soon as I was about to pass, he started sandbagging me for 3 miles.
by experienced driver 3420 January 21, 2017
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A sandbag is any female that does nothing during sex apart from lie there naked and take the prodding, also is unwilling to try any other posistion apart from standard missionary.
'Was that bird from the club a good shag?' 'nahh, an absolute sandbag.'
by Jamesy C September 29, 2012
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To shoot-down or put-down someone hardcore. Can be involuntary; to point out ones flaws
Sandbagged, Sandbagging.
-Ronnie: "Don't you like this picture I drew? I'm quite proud of it."
-Dylan: "No, actually Ronnie, that's a terrible picture. You colored outside the lines completely and you have no artistic talent."
-Bubz: "OHHH OHHH! SANDBAGGED! RONNIE, YOU JUST GOT SANDBAGGED BY DYLAN THE SANDBAG KING!"
by Bubzandronnie June 13, 2008
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When there is an extreme case of saggin titties.

When you walk and kick your titties simultaneously.

Low perkiness, high saggage
Don't know body want to see them sandbags.

Do they even make bras for those sandbags?

Look she steppin on her sandbags.
by none January 31, 2005
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Derogatory Naval Reserve term for any member of the Army Reserve.
He doesn't know what he's talking about. He's only a sandbag.
by Snake October 26, 2005
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A woman with the tits that are sagging.
They gives her black eyes when she runs.
Alanna Cross, Deer Lake Nl i.e. Sandbags
by quackermcquakerson March 14, 2011
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My girlfriend and I went to the beach and she got a good ol' sandbagging.
by kjb22 March 12, 2019
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