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To long for-To desire for someone or something.
eg:She is longing for her old friends.
To cast down-throw something down
eg:she cast the glass down.
Hit upon-To strike against something
eg:I hit upon the radio until it started working.
The imagery of tripping on toes also appears in Shakespeare's The Tempest: "Before you can say come, and goe, / And breathe twice; and cry, so, so: / Each one tripping on his Toe, / Will be here with mop, and mowe."