Green’s Dictionary of Slang

(US campus) excited.

1969		Current Sl. IV:1 8: Get honked up, v. To become excited or agitated.
1973		Penthouse May 111: I’m really honked up over a girl [HDAS].
2002		J. Wright Plotless Pointless Pathetic (2004) 98: Oh, come on, what are you two getting so honked up about?