the act of throwing up in a small space or room (i.e. a taxi). Then rubbing the sick into ones face, hair becomes mangled in a weave formation due to chunks of food and debris which lined person stomach.
person one- WTF is rob doing, he's spewing and rubbing it into his face
person two- relax, someone told him to pull a weaver
Rob- Waahhaaayyy, look at my beautiful vomit entangled hair