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1.
a term used to describe someone who leaves you on a night out
what a bitch, she totally did a rachel on me last night and left me on my own - doing a rachel
by hunnibunny June 26, 2011
 
2.
Drunkenly being sick on yourself on the tube
Excess drinking leads to disgracing yourself on the tube, going to ex boyfriends house and then having to go to work the next day in his flatmates clothes and shoes with soiled clothes in a plastic bag. Work mates then class this as 'doing a rachel'
by SmilingMAD February 05, 2010