A laugher is a slang term for one of several types of drugs, usually euphorics or stimulants, that have a tendency to make the user laugh easily and hysterically while under its influence. Examples of laughers include cannabis (in small amounts), ecstasy and speed.

Other categories into which drugs may fall include uppers, downers, screamers and psychedelics.

Laughers are not always stimulants. When under the influence of certain sedative drugs such as marijuana or hashish, the user can get the "giggles" and can laugh for no apparent reason for long periods of time. When taken in small doses, the psilocybin mushroom can cause euphoria and make the user giggle and laugh.

References

• Drug Rehab & Treatment Centers Includes information about various drugs and their effects