Predecessor to fantasy sports, created during the Depression as a diversionary pleasure. Name is derived from the fact that the leagues are half-assed and ill-conceived, and quickly "tossed" out to be used by friends and acquaintences. Often involved wrestling or grappling activities, although tosa leagues can even include sports such as tennis or skeete-shooting.

Pronounced "Tawssa lig"
Cromwell and I are going to set-up a Tossa-League, want to join?
by NVA Barry January 16, 2006
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