Back to back.

A move in square dancing in which two dancers face each other, then step forward and left until they have right shoulders adjacent, then move to a position where they are back to back, then move to have left shoulders adjacent, then return to facing each other.

(slang) To bomb with an atom bomb.

(slang) An atomic bomb; a weapon that derives its energy from nuclear reactions and has enormous destructive power.

(originally US) A problem generally has more than one solution; there is more than one way to achieve a goal.

Small ornaments and other miscellaneous display items of little value. / (by extension) Any collection containing a variety of miscellaneous items; a hodgepodge, an olio.

Marks nouns, with a foundation in Italian, Spanish, or Portuguese, implying femininity.

(slang) clitic form of o' (contraction of of)

Changes an element or substance into an oxide.

(slang) Alternative form of 've