A way of saying Fucking, without the same level of vulgarity, and also a way to make yourself sound like a complete Dork if said seriously with no tone of sarcasm.

See also Fecking.
Example 1-
Fat Old Man: "..."
Young Asshole: "YOU ARE SO EFKING FAT! YOU FUCK!"

Example 2-
Mother: "Johnny, please pass the Efking salt for your father."
Johnny: "Ok, I will pass the Efking salt.

Example 3-
Suicidal Man: "I hate this Efking world."
Random Dickhead: "Go jump off an Efking bridge!"
Suicidal Man: "Suck my Efking penis, I can't swim!"
by xerocide November 15, 2007
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