SFM

In messages, "SFM" describes an excessive amount of something. For example, your gf may message you, "i luv u sfm!" (her love for him is excessive in this context).

You will likely only see SFM in texts and online messages when people emphasize how much they like or want something or someone (often food). For example, a pizza may hit the spot, and you message your friend, "I love this za sfm! Thanks for telling me about it." Or, your buddy may be bored with a long movie, "i hate the titanic sfm."