I.
noun
Sling is used after these nouns: ↑ shoulder
II.
verb
ADVERB
▪ loosely
▪ carelessly , casually
▪
His jacket was carelessly slung over one shoulder.
PREPOSITION
▪ across , around , in , on , over , round ( esp. BrE ), etc.
PHRASES
▪ ~ mud at sb (= criticize or accuse sb to damage their reputation)
▪ ~ sth around sb's shoulders
▪
He slung his arm around my shoulders.
▪ ~ sth over your shoulder
▪
She slung her bag over her shoulder.
Sling is used with these nouns as the object: ↑ backpack , ↑ bag , ↑ jacket , ↑ pack , ↑ rucksack