Examples of use of Befoul
1. This week, the assemblage of bootlickers and bagmen that befoul the U.S.
2. The insults they shower upon her in their state press befoul them in ways they dimly perceive but never entirely understand.
3. It is nothing but rhetorical wind, the passing of which is meant to befoul the political atmosphere and smear the War Party‘s opponents as the contemporary equivalent of Nazi sympathizers.