Someone who is very comfortable with physical affection (think Abby Scuito from NCIS) and is not afraid to be bold in initiating it, especially with their significant other.
Boy: "What are you doing?"

Girl: "I'm an aggressive snuggler. Deal with it."

Slightly scared, he put an arm around her waist and let her hold him, not wanting to feel her wrath.
by Writer Chick July 31, 2009
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