When someone exclaims "That's a great idea!" they usually mean that something unusually beneficial has happened, out of proportion to what would normally have been expected in the circumstances.
A Sebir is an innovative idea with this quality. A Sebir is innovative because the beneficial value it generates greatly exceeds the cost of the effort employed to implement the idea.
The term 'Sebir' is a loose acronym for the description 'Small effort: big result'. It is a label attached to any idea where it is obvious that the investment of a relatively small amount of effort has generated a disproportionately beneficial result.
"I once knew a chap who had a system of just hanging a baby on the clothes line to dry and he was greatly admired by his fellow citizens for having discovered a wonderful innovation on changing a diaper." Damon Runyon 1880-1946, Newspaperman and Author