Fast is used as an adjective meaning 'close', 'strong', 'loyal', 'permanent'.
Fast colors meaning resistant to fading. Fast friends meaning loyal friends, close friends, permanent friends.
John and I have been fast friends since we met in the 4th grade.
Prices shown in USD.
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from email@example.com. We'll never spam you.