Be on pins and needles and Be on nettles

Be on nettles and be on pins and needles are semantically related. In some cases you can replace phrase "Be on nettles" with "Be on pins and needles", this phrases are similar.

Be on pins and needles and be on nettles are semantically related. Sometimes you can replace phrase "Be on pins and needles" with "Be on nettles", this phrases are similar.