Is “Sicking” a Scrabble word?
Yes
SICKING
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Sicking
verb
1.To incite an attack by, especially a dog or dogs.
“He sicced his dog on me!”
2.To set upon; to chase; to attack.
verb
1.To vomit.
“I woke up at 4 am and sicked on the floor.”
2.To fall sick; to sicken.