Rockford Restaurant To Feature Special “420” Menu For April For the month of April, this Rockford restaurant will feature a special "420" menu. If you clicked on this story, it is probably a safe bet that you are "pro" marijuana, so I will not have to explain to you "420." Just in case you decided to check it out because of curiosity, but you do not know the meaning of the "420" reference, well here is some important information. According to verywellfamily.com, "The term 420 is used to reference pot smoking. While the term was historically used as a "code" to designate someone's activities or beliefs, such as describing something as "420 friendly," it is no longer a secret."