Real Dictionary

conga
countable noun: If a group of people dance a conga, they dance in a long winding line, with each person holding on to the back of the person in front.

conga in American English
a Latin American dance of African origin with a repeated pattern of three steps followed by a kick: the dancers typically form a winding line
to dance the conga
intransitive verb: to dance a conga
noun: a Cuban ballroom dance that consists of three steps forward followed by a kick, characteristically performed by a group following a leader in a single line

conga in British English
noun: a Latin American dance of three steps and a kick to each bar, usually performed by a number of people in single file
verb: to dance the conga