What is Satched?
1.
That act of being soaked or wet. Usually refers to water but has been used in the context of alcohol.
'Did you see that torrential downpour ? I forgot my umbrella and got absolutely satched'
'I drank so much beer last night, I was fookin' satched'
2.
Being incredibly horny that you
Me and my girl couldn't even get it on because i was so satched that i creamed in my linens before she unbuttoned my khakis.