Garden Bone
When you are about to plant your yearly daffodils, before you do so you have to 'garden bone' this is where you pour old gritty soil inside your foreskin and a tiny bit in your japs eye, wank and make yourself cum- then use the soil and cum mixture residue to plant your new daffodils.
Hey Jamal you crazy bastard, you can't just plant those daffodils without have a garden bone for fuck sake! Grandad will go skitz!
bone garden
A cemetery
When you die, you are buried in a bone garden.
Birmingham bone garden
A place, usually outdoors, where multiple couples hook up after sporting events, parties, etc to have sex
"Hey are you guys goin to the park later? That place is a basic Birmingham bone garden!""