TO ALLOT UPON, verb. phr. (American colloquial).To count upon; TO RECKON (q.v.); TO CALCULATE (q.v.).
1816. PICKERING, A Vocabulary U.S.A., 31. I ALLOT UPON going to such a place.
1840. HALIBURTON (Sam Slick), The Clockmaker (1862), 93. And I ALLOT we must economise, or we will be ruined.