lib line
n.β Β«For the longer races you might have to sit by the loft for an hour or so, all keyed up waiting. In the big national races we have whatβs called a “lib line” to check by phone on the liberation time and conditions.Β» ββA Life in Sport: Chris Gordon” by Charles Randall Telegraph (United Kingdom) Oct. 11, 2006. (source: Double-Tongued Dictionary)