Proper noun
Kotter (plural Kotters)
A surname.
This guide offers sage advice from business greats, including Peter F. Drucker and John P. Kotter, on how managers can improve personal performance and productivity and, in the process, become better managers of those they lead. Source: Internet
Travolta said,"Brooklyn has been in my DNA since "Welcome Back, Kotter". Source: Internet
Not many appreciate a good Welcome Back Kotter reference anymore. Source: Internet