0 past simple and past participle of thrash
1 to hit a person or animal hard many times as a punishment:
2 to move from side to side in a violent or uncontrolled way:
3 to defeat someone very easily in a game or sports competition:
4 to thresh
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.