Might it be Ballinlough? However there are dozens of townlands by that name. I did some research on the name Gillick and it seems to be commoner in Cavan and Meath.
http://www.ireland.com/ancestor/surname/index.cfm?fuseaction=Go.&UserID=But that doesn't narrow it down much. Sorry

Ballinlough Cavan Lower Loughtee Annagh Cavan Ulster
Ballinlough Meath Ratoath Dunshaughlin Dunshaughlin Leinster
Ballinlough Meath Fore Moylagh Oldcastle Leinster
Ballinlough Westmeath Kilkenny West Bunown Athlone Leinster
Ballinlough Westmeath Delvin Killua Castletowndelvin Leinster
Ballinlough (Wadding) Westmeath Delvin Castletowndelvin Castletowndelvin Leinster
Ballinlough Big Meath Upper Kells Kilskeer Kells Leinster
Ballinlough Little Meath Upper Kells Kilskeer Kells Leinster