CCTV caught an altercation between a man and a bouncer outside the Late Lounge in Grantham.
Brendan Kavanagh, 23, of Manor Drive, Great Gonerby, argued with a bouncer before being approached by another male acting aggressively.
Kavanagh ended up being restrained on the ground by door staff. Bill Fraser, defending, said: “When the police arrived he still used unpleasant and abusive language and that’s why he pleaded guilty today.”
Kavanagh admitted a public order offence and was fined £80.