A Hambone is a term used to describe a Fat Jelly-ass who lives off welfare, is overweight and contributes nothing to society.

When someone goes to the gym and spends 90% of the time on their phones scrolling through social media

A rhythmic knee and chest slapping motion; A dance where you make your own music by slapping your "hambone" (outer thigh) {*1} then your chest {*2} and your inner thigh (or top thigh) {*3} on the way back down to make a 3 beat rhythm.
This rhythm was popular amongs Afro-Americans during the slave times and following. It was a common popular dance/music making method. At times it accompanied instruments or dance (such as scat) such as the fiddle or whatever could be attained during the hard times of poverty {Currently nearly non-existing and a lost art of African-American culture}

A pair of undeniably delicious thighs.

You know what I’m taking about. You literally JUST pictured them.

Four consecutive strikes in a game of bowling. One better than a Turkey (three consecutive strikes).

tis a bone, from a the animal known as ham

Four strikes in a row during a 10 pin bowling tournament. Started as a catch phrase by ESPN announcer Rob Stone, it has turned into a bona-fide term for four strikes much like Turkey is the bowling term for three strikes in a row.