snatch

   1. a single act of copulation

   Usually extramaritally. The derivation might be from any of several standard English meanings of snatch — a snare, an entanglement, a hasty meal, a sudden jerk — or merely from snatch², the vagina. Shakespeare could have been using the word in either sexual sense:

    ... it seems some certain snatch or so Would serve your turns. [Titus Andronicus)

   but there is no equivocation in:

    I could not abide marriage, but as a rambler I took a snatch when I could get it. (R. Burton, 1621)

   2. the vagina

   Perhaps from the meaning, a portion of hair, or merely from its association with snatch¹:

    ... if the number of the vaginas... were lined up orifice to orifice, there would be a snatch long enough... (Styron, 1976)

   A snatch mouse is a tampon in American slang.

   3. to kidnap or steal

   The action of seizing:

    Snatching Steven was going to be one big piece of chocolate cake. ( J. Collins, 1981)

   A snatch is the commission of either type of crime:

    Harry the Horse and Spanish John and Little Isadora... go on the snatch on a pretty fair scale. (Runyon, 1990, written in 1935)

   4. to arrest

   Either singly, or taking a ringleader from a mob. Whence the police snatch squad, which is trained to make such arrests.