When you are as high as fucked and everything you see seems like you are in Narnia and you start seeing things like Alice in "Alice in Wonderland". Mostly it is caused by shrooms or other drugs that can cause delusions or plays your mind.
Merwin: Dudeeee.. I was lost in illusions last night because of the shrooms that you gave me.
Rupert: Damn Bro! I didn't give them to you, you stole them from me!
Rupert: Damn Bro! I didn't give them to you, you stole them from me!
by Shadyshadowmoon March 28, 2019
Get the lost in illusionsmug.