The word also functions as a metaphor for misery, exhaustion, malaise and any of the various conditions that would make one gull-eyed.
"I told her the baby was cute, but it was actually gull-eyed and ugly."
"I was feeling pretty gull-eyed all week. I still can't believe my dad is dead."
"You're out of weed, are you? I don't know - you're looking pretty gull-eyed to me!"