Lots of alcohol consumption at a party, supposed to make the participants have outrageous fun.
"I am ready to let loose tonight and shayo all night.
A song by Nigerian artiste, Bigiano
I no go fir invite una come my party make una no shayo = I can't invite invite you to my party if you won't enjoy yourselves.
Enjoyment or to enjoy.
I go shayo for that party for V.I. = I will enjoy at the V.I. party tonight.