diff --git a/lib/index.js b/lib/index.js
index 4929b22..5e8031d 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,4 +1,6 @@
+const META = Symbol('proc-log.meta')
 module.exports = {
+  META: META,
   output: {
     LEVELS: [
       'standard',
diff --git a/test/index.js b/test/index.js
index d4225eb..9921e59 100644
--- a/test/index.js
+++ b/test/index.js
@@ -2,9 +2,17 @@ const t = require('tap')
 const procLog = require('../')
 
 // This makes sure we are testing all known exported methods.
-t.plan(4)
+t.plan(5)
 
 for (const method in procLog) {
+  if (method === 'META') {
+    t.test(method, t => {
+      t.type(procLog[method], 'symbol')
+      t.end()
+    })
+    continue
+  }
+
   t.test(method, t => {
     const log = procLog[method]
     const { LEVELS, KEYS } = log
diff --git a/test/meta.js b/test/meta.js
new file mode 100644
index 0000000..2fda4b0
--- /dev/null
+++ b/test/meta.js
@@ -0,0 +1,42 @@
+const t = require('tap')
+const { META, output } = require('../')
+
+// just to show how this would be implemented in consumers
+const getMeta = (...args) => {
+  let meta = {}
+  const lastArg = args[args.length - 1]
+  if (
+    lastArg &&
+    typeof lastArg === 'object' &&
+    Object.prototype.hasOwnProperty.call(lastArg, META)
+  ) {
+    meta = args.pop()
+  }
+  return [meta, ...args]
+}
+
+// an example of wrapping a handler
+const wrapMeta = (handler) => (level, ...args) => handler(level, ...getMeta(...args))
+
+t.test('meta', t => {
+  process.once('output', (level, ...rawArgs) => {
+    const [meta, ...args] = getMeta(...rawArgs)
+    t.equal(level, 'standard')
+    t.ok(meta.force)
+    t.strictSame(args, ['arg1', 'arg2'])
+    t.end()
+  })
+
+  output.standard('arg1', 'arg2', { [META]: 0, force: true })
+})
+
+t.test('wrap handler', t => {
+  process.once('output', wrapMeta((level, meta, ...args) => {
+    t.equal(level, 'standard')
+    t.ok(meta.force)
+    t.strictSame(args, ['arg1', { META: true }])
+    t.end()
+  }))
+
+  output.standard('arg1', { META: true }, { [META]: null, force: true })
+})