Wiktionary
vb. 1 (context transitive idiomatic English) to mislead, to try to make someone believe a lie. 2 (context transitive idiomatic English) to encourage with the illusion of a romantic relationship.
WordNet
Wikipedia
Lead On is the fifteenth studio album released by American country music artist George Strait. Released in 1994 on MCA Records, the album was certified platinum in the U.S. for sales of one million copies. It includes the singles "The Big One", "You Can't Make a Heart Love Somebody", "Lead On", and "Adalida", which respectively reached #1, #1, #7 and #3 on the Hot Country Songs charts between 1994 and 1995. The album's title track was co-written by Teddy Gentry, who at the time was a member of the band Alabama.
"Lead On" is a song written by Dean Dillon and Teddy Gentry, and recorded by American country music artist George Strait. It was released in June 1995 as the fourth and final single and title track from his album Lead On. The song reached number 7 on the Billboard Hot Country Singles & Tracks chart in September 1995.
Usage examples of "lead on".
The operator she could have teased, but it would be most unwise of her to lead on the Treaty Controller.
Naill was in the lead on his turn as pathfinder when he saw mirrored on a trunk of a neighboring tree a dark patch which came into better perspective and stopped him short.
An old Mexican leading a burro loaded with firewood told Longarm he was on the right trail now, although the gringo on the lathered roan had one hell of a lead on him.
But they had a good ride ahead, and if he was at all able to read a maniac's mind they had a good four or five days' lead on the real reason for all this traveling.