[sit-up] {n.} A vigorous exercise in which the abdominal muscles are […]

[six bits] {n.}, {slang} Seventy-five cents. * /"Lend me six bits […]

[six of one and half-a-dozen of the other] {n. phr.} Two […]

[skating rink] {n.}, {slang}, {citizen's band radio jargon} Slippery road. * […]

[skeleton in the closet] {n. phr.} A shameful secret; someone or […]

[skid lid] {n.}, {slang} A crash helmet worn by motorcyclists and […]

[skid row] {n.} The poor part of a city where men […]

[skin and bones] {n.} A person or animal that is very […]

[skin off one's nose] {n. phr.}, {slang} Matter of interest, concern, […]

[slag off] {n.} {v.} A verbal attack. To criticise or slander.