A sexual encounter that isn't completely satisfying but wasn't too bad. I.e. activity took place but there was no penetration hence "no bone".
Jon : How did you get on with that bird you picked up the other night?
Jim : Ah it was a boneless banquet but she can suck for England! Soggy fries though.
Jim : Ah it was a boneless banquet but she can suck for England! Soggy fries though.
by JayArseyHudd July 19, 2019