Large abdominal bulge of fat on the male human species where the genitals and gut become one. sufferers often not seen there cock for many years.
I will stick it in as soon as I lift my Gwilly on to your back!
by James Morris April 8, 2005
Get the gwilly mug.
When you are super unlucky and always get injured.
"oh my gosh what have you done?"
"oh my gosh she's done Gwillis"
"classic"
by rainbowkitty123 September 9, 2018
Get the Gwillis mug.