itfu stands for "In the fucking house," somehow or another. It originally came in conversation with the common gtfo my house phrase, and to say "i'm not in the fucking house" the ITFU was born.
Guy 1: STFU bish, GTFO my house nao.
Guy 2: i'm not itfu retard.
by t3h c0wz0rz September 16, 2006
itfu stands for "In the fucking house," somehow or another. It originally came in conversation with the common gtfo my house phrase, and to say "i'm not in the fucking house" the ITFU was born.
Guy 1: GTFO my house, nao.
Guy 2: I'm not itfu retard.
by t3h c0wz0rz September 17, 2006

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