n.
Pronunciation: - ˌ r ō -li ŋ
Function: noun
Date: 1812
1 [from a former American custom of neighbors assisting one another in rolling logs into a pile for burning] : the exchanging of assistance or favors specifically : the trading of votes by legislators to secure favorable action on projects of interest to each one
2 : the rolling of logs in water by treading also : a sport in which contestants treading logs try to dislodge one another