To try to get a ride in a passing vehicle while standing at the side of a road.
1They won't leave a king on the side of a highway trying to thumb a lift to the FNB Stadium.
2Some hours later he was seen again thumbing a lift at Killenena, Gort
4Reuben Jones left his home in Moynoe, Scarriff at 2pm yesterday and was seen thumbing a lift on the Scarrif-to-Feakle Road.