The last comment is wrong. My name is cool as nuts.. P.S., Lonnie is my legal name. I love nickname-names. It's not short for anything. P.P.S., I'm a chick. I love unisex names! I've only ever met dude Lonnies.
Yolanda DeSoto (referred to almost exclusively by the nickname Lonnie) is an unseen character in the 2013 game Gone Home. Though the player never meets her firsthand, throughout the game they are told about Lonnie via environmental clues and the writings of the protagonist’s sister, with whom Lonnie is romantically involved.
In 2018, 53 is the most common age for an American (U.S.) Lonnie* who is registered male with the Social Security Administration. It is the 653rd most common male first name for living U.S. citizens. *as a first name, not a nickname.
― Anonymous User 10/15/2018
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Also a female name, sometimes with different spellings, like Loni.