Don't spit on "Hawk Tuah" girl's name in the crypto world, because she says the SEC's thorough investigation into her controversial meme coin is over, and she's walking away clean ... TMZ has learned. Haliey Welch tells us, "For the past few months, I've been cooperating with all the authorities and attorneys, and finally, that work is complete." The U.S. Securities and Exchange Commission launched an investigation after Haliey's meme coin, "$HAWK token," crashed in value after a rapid rise ... and left lots of investors -- many of them first-timers -- holding the bag. Those heavy losses also prompted a lawsuit ... (full story)