A hippie happening is a term used to describe a gathering of people who share similar values and beliefs, such as peace, LOVE, and freedom. The crossword solutions for the term 'hippie happening' are BEIN (4 letters), BENIN (5 letters), and LOVEIN (6 letters). BEIN is an abbreviation of the phrase 'being IN the moment, ' which is a concept that encourages people to be mindful and present IN the current moment. BENIN is a country IN West Africa, and LOVEIN is a combination of the words 'LOVE' and 'IN, ' which is a reference to the idea of LOVE being a central part of the hippie movement.