For a person to say they are 'Skill' means that they think they are good at something or have just done something great (Skill)
The rules from the Primary School Slang Handbook state:
"One must be skill with two 'L's and not just one. This has to be clearly stated after the word is said. If a person is 'Skill' with only one 'L' it means they have horses bum disease"
Stan - "Did you see that goal? I'm skil"
Ray - "You never said skill with two L's, that means you have horses bum disease"
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