grass tops UK /ˈɡɹɑːstɒps/US /ˈɡɹæstɑps/adjective 1noun 1 adjective1 •Of, related to, or involving local influential figures.Along with the ads, industry worked to mobilize local politicians and business executives in what business groups called a "grass tops" campaign. — 1998 noun[plural only]1 •People in a position of power or influence at a local level.They also had important connections to advocacy groups and the local "grass tops." — 2007