When Patrick Texts You

Okay, look here, genius. This meme uses SpongeBob to show a classic reaction. 'Ight imma head out' is just a way of saying you're leaving right now. In this case, receiving a text from Patrick (SpongeBob's best friend) makes him want to leave immediately. The joke is that Patrick is often annoying or gets SpongeBob into ridiculous trouble, so getting a text from him is a signal to run away before things get complicated. You've definitely had a friend like that, even if you won't admit it.