よろしくやる

Meanings

1

expression, godan verb (-ru)

make out with; get cozy with

usually written using kana alone

Casual, often physical intimacy; implies getting physically close or intimate with someone, sometimes with a nuance of taking advantage of the situation.

彼かれはパーティーで彼かの女じょとよろしくやっていた。
He was making out with her at the party.

2

expression, godan verb (-ru)

do at one's own discretion; handle as one sees fit

Used when leaving something to someone's judgment or when someone acts freely without strict instructions; often in the form よろしくやってください.

あとはよろしくやってください。
Please handle the rest as you see fit.