Top Definition
Those roadside plastic signs advertising dating sites, furniture sales, diets, and work-at-home scams.

They are the guerrilla marketing equivalent of e-mail spam.

From the vast amount of oil-based plastic used to make them, it is clear that the energy crisis is a scam.
Mutt: Check this out, ima be rich an' skinny in 30 days !

Jeff: Yeah yeah. I saw that road spam sign too:

EARN 6 FIGURES
LOSE WEIGHT
GET GIRLS
CALL 1-555-4LOSERS
by TekRant June 15, 2010

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