<human>: Can you give me a shortened version of the text?

TIFU. It happened today at around 6:30 pm. Me and a couple of friends decide to go to the Swapmeet. We roll a joint, smoke it in the parking lot, and then go out for an adventure. One of my friends, we'll call him A, wants to buy a knitted beanie, but doesn't know the name. I call my sister, who owns like 5, to try and find out the name. In the middle of the call, I try to take it off speaker, and I accidentally press end. No biggie. I'll call her back in a little after we pay. We pay, walk in, and being stoned, run over to the churro stand. I decide I'll call my sister back. Unlock phone, call sister. 

S: "hello?"
Me: "aye dude, I'm high a'f and hung up on accident"
Silence...
S: "um... This is your mom dummy!... Hahahha" 
She hangs up. 

I'm frozen. Wtf did I just do!? Holy shit! Wtf!!!? In my attempt to call my sister, I didn't realize I opened my moms contact. Stupid iphone.
<bot>: Got really high. Called sister, said I was high a'f, but it wasn't my sister. It was my mom.