411 REFERENCE · Wiktionary
DFK
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
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en slang en deep French kissing.
en 2009 Barbara G. Brents; Crystal A. Jackson; Kathryn Hausbeck The State of Sex: Tourism, Sex and Sin in the New American Heartland Routledge 9781135280239 208 https://books.google.com/books?id=feCNAgAAQBAJ&pg=PA208&dq=%22DFK%22+french+kissing&hl=&cd=5&source=gbs_api#v=onepage&q=%22DFK%22%20french%20kissing&f=false It could include elements of the following: kissing (maybe DFK or Deep French Kissing), prolonged foreplay, cuddling, massage, and extensive conversation.