I worked with a lady who did this all the time. She’d over hear words and just start using them at work and even with clients. She offered people “dime bags” assuming it meant “a small bag”. She heard someone call a charcuterie board a “coochie board” and thought it was cute so kept saying it. She called her husband “Big D” because his name starts with D and the default icon her phone gave him was a capital D and she thought it was a cute nickname.