lateral pass

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A usually underhand pass that is thrown sideways or somewhat backward with respect to downfield.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun American football a pass thrown laterally and that counts as a hand-off
• noun American football any hand-off, whether lateral or backward

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a pass to a receiver upfield from the passer