Shift

v.

Heard in Laois, Wexford, Longford, Tipperary, Clare, Sligo, Cork, Limerick, Mayo, Waterford and Kilkenny

To kiss with tongues. If one attends a teenage disco one will probably be asked by someone to shift their friend by means of a tap on the back.

In use

Will you shift my friend?

Posh English

Would you care to kiss my friend with tongues?

Same phrase, other counties