Dumb insulation question
Sure, but glueing would be difficult. Most just lap the tabs on the FACED insulation and staple to the bottom of the 2x4’s...or staple to the sides of the 2x4’s. 

The goal is to get all the insulation in straight (no puckering) and all edges and ends pushed together with no voids. 

The blanket of insulation will expand slowly over time (4-6 hours) and help fill in all the voids. Make sure it doesn’t block the soffit vents. 

BTW, wear a breather mask.