a stub - stʌb
1) the truncated remnant of a pencil, cigarette, or similar-
shaped object after use - The ashtray was full of stubs.
2) the counterfoil of a cheque, receipt, ticket, or other document - Please retain your ticket stubs.
to stub (out)
1) to accidentally strike (one's toe) against something
I stubbed my toe, swore, and tripped.
2) to extinguish (a lighted cigarette) by pressing the lighted
end against something
She stubbed out her cigarette in the overflowing ashtray.