A person or in some exceptional cases an animal that drinks copious amounts of alcohol despite their body not having the physical capacity to take it.
Someone who is performing a "ramesh" can be spotted by the following:
A) an early peak in the nights antics before a sharp and sudden downturn.
B) in certain scenarios somebody performing a "ramesh" won't even make it on a night out.
"Wow there Charles, you better calm down, we don't want you doing another ramesh on us again".
"Is Suzanne not getting cabs with us?"
"No she started drinking early and now is doing a ramesh on us".