Slangs on Doja Cat - Kiss Me More

Could please someone save the day and tell me what's the " I feel like fuckin' something" actual meaning on this part of Doja Cat's song? I'm kinda lost. Is it like "I feel like fuckin' somethin' (up)" or more like "I feel (myself) like 'real' somethin'" or even the literal na*ghty meaning?

About the "Dummy, dummy" part, is the repeating just to add some intensity or is it another slang I don't know?

"I, I feel like fuckin' somethin'
But we could be corny, f*ck it
Sugar, I ain't no dummy, dummy..."