You are in the mood to suck some one off
Im going to go mosquito mode on your dick
When you're just too horny and can't really think about what you're doing.
When you're in caveman mode, it's important to ejaculate as soon as possible in order to reach post-nut clarity, or it could lead to dire consequences.
Don't stay in caveman mode too long, we don't want you going to jail for cumming in that girl's coffee.