According to nearly every dictionary ever (possible exception for naughty ones), a liqueur is a sweet, strong, alcoholic beverage that one typically consumes after dinner. Well, not always after dinner. Liqueur isn't just for dinner anymore. Liqueurs are liquors (distilled spirits) that generally have added flavor from herbs, spices, creams, etc. So, Bailey's? Yes. Absinthe? Yes. St. Germain? Yes. Hopefully you get the point. There's entirely too many to list. There's also entirely too many for us to be able to say we are in any way knowledgeable about it.
Peanut Butter & Jelly
1 oz. Framboise (blackberry liqueur)
1 oz. Frangelico (hazelnut liqueur)
Does this look like a shot to you? Probably, but don't drink it like one. Sip and enjoy.