1. The insipid laugh emitted by half drunk people at a singles bar when they are responding to the wit, wisdom and humor of other half drunk people hoping to score. sounds like - ha, ha, (slight pause) ha, ha, ha (intonation on the middle ha)
2. everyday use of a flirtatious laugh indicating possible interest in a member of the opposite sex, most frequently used by young women
I can't believe all the bar laughs I heard at that party. Were all the women drunk, or were they coming on to President Clinton?