S

[shape up or ship out]  {v. phr.},  {informal}

To either improve one's disposition or behavior, or quit or leave.

* /When Paul neglected to carry out his part of the research work that Professor Brown had assigned him with for the fifth time, the  […]

[sharp]

See: [LOOK SHARP].

[sharp as a tack]  {adj. phr.}

1. Very neatly and stylishly dressed

That new boy always looks sharp as a tack in class.

2. Very intelligent; smart; quick-witted.

[shed light on] or [shed light upon]

See: [CAST LIGHT ON]; [THROW LIGHT ON].

[sheep]

See: [WOLF IN SHEEP'S CLOTHING].

[sheepskin]  {n.}

Diploma.

[sheet]

See:

[SCANDAL SHEET],

[THREE SHEETS IN THE WIND] or [THREE SHEETS TO THE WIND].

[shelf]

See: [ON THE SHELF].

[shell]

See:

[IN ONE'S SHELL] or [INTO ONE'S SHELL],

[OUT OF ONE'S SHELL].

[shell out]  {v.},  {informal}

To pay or spend.