A +1.5 spread is commonly seen in baseball betting, the standard runline  for MLB. This spread means the underdog must win outright or lose by exactly one run to cover the spread. Alternatively, a -1.5 spread means that the favorite must win by at least two runs. Many baseball games are decided by fewer than two runs.

Buck or dollar -- Common slang term for bettingR$100. Buying the half -- Paying the bet-taker extra to lower the point spread or the total by a half-point. Chalk -- Slang for the favored teams in regard to the spread.

Dollar: Jargon for aR$100 bet. Usually used with bookies; if you bet "five dollars," that means aR$500 wager. Edge: An advantage. Sports bettors might feel they have an edge on a book if they think its lines aren't accurate.