Chalky

[Sarah]

What a black person calls a white person

[Sarah]

A [shit] found in a concealed area that has dried with a powdered white texture.

[Sarah]

A Chalky; Chalkie (or Chalkies), is a nickname given in skateboarding to small rocks or other small items that can wedge under the wheels. Chalkies pose an immediate threat of suddenly stopping the wheels movement and throwing the skater off.
After a stone is wedged it moves several centimeters before stopping the wheel all together. It tends to leaves behind a line similar to a chalk line, marking the position of where you were thrown. Hence the name, Chalky.

[Sarah]

A girl who is seen wearing waay too much makeup, likes to get [plastered] every weekend and has a grating voice that sounds like nails on a chalkboard.

[Sarah]

A person who sucks in all aspects while you are around them (screeching sound while writing on the chalk board) and thereafter (white residue left on your hands).

[Sarah]

In sports: when there are very few upsets in an playoff system/bracket/tournament

[Sarah]

A thick white/yellow cone pulled through a bucket bong

[Oralee]

containing or similar to chalk (= soft white rock) :

[Lanell]

composed of or containing or resembling calcium carbonate or calcite or chalk

[JustiniaNex]

Chalky generally refers to a substance or texture similar to chalk, characterized by a dry, powdery, and usually white surface. It can also mean having a pale or white appearance. Additionally, in taste descriptions, chalky often refers to a hard, gritty texture that leaves a dry sensation in the mouth.