Sillie is used as a substitute for "silly", it means the same thing its just spelt differently for silly fun
For example when someone says "sillie"
They mean silly, but in a more silly way as if they're such a goofball
For example when someone says "sillie"
They mean silly, but in a more silly way as if they're such a goofball
by Kinuwoo December 1, 2023
Get the Silliemug. Being so extremely intoxicated by alcohol and drugs, to the point that everything you say and do is considered to be silly, but in a funny way.
"Woahh. I've drank so much beer! If I have one more I'll enter Silly Mode"
"Hey my man, what are you doing tonight? Me and the boys are going Silly Mode"
"Hey my man, what are you doing tonight? Me and the boys are going Silly Mode"
by The Driving Crooner May 7, 2024
Get the Silly Modemug. A first year student at uni who takes things way too far on a night out, deffo won't be up until about 4pm.
by sillyfresher4 December 9, 2021
Get the silly freshermug. You are a very silly person and if you friend is doing something really dumb or is laughing and you don’t know what he/she is saying call then a goose or silly goose
by Silly bean head November 4, 2020
Get the Silly goosemug. 
Andrew just received a final warning from his boss for being such a silly clit towards his foreign colleagues.
by Gorgeou8 August 20, 2008
Get the Silly Clitmug.